What are the available strengths of Cialis. How should Cialis be taken for erectile dysfunction. What is the recommended dosage for benign prostatic hyperplasia. How can you maximize the effects of Cialis. What are important dosage adjustments for kidney or liver issues.

Understanding Cialis: Strengths and Forms

Cialis, also known by its generic name tadalafil, is a medication primarily used to treat erectile dysfunction (ED) and symptoms of benign prostatic hyperplasia (BPH) in adult males. As a member of the phosphodiesterase 5 (PDE5) inhibitor class of drugs, Cialis works by relaxing blood vessels and increasing blood flow to specific areas of the body.

Cialis comes in tablet form and is available in four different strengths:

• 2.5 milligrams (mg)
• 5 mg
• 10 mg
• 20 mg

The variety of strengths allows for personalized dosing based on individual needs and medical conditions.

Dosage Options for Erectile Dysfunction

When prescribed for erectile dysfunction, Cialis offers two primary dosing strategies: occasional use and daily use.

Occasional Use for ED

For occasional use, Cialis is taken on an as-needed basis, typically before sexual activity. The standard starting dose is 10 mg, which can be adjusted based on efficacy and tolerability. Your healthcare provider may decrease the dose to 5 mg or increase it to 20 mg, depending on your response to treatment.

Is there a maximum daily dose for occasional use? Yes, the maximum recommended dose is 20 mg per day. Exceeding this dose can significantly increase the risk of serious side effects, such as dangerously low blood pressure or priapism (a painful erection lasting 4 hours or longer).

Daily Use for ED

For those who prefer daily dosing, Cialis offers a consistent treatment option. The typical starting dose for daily use is 2.5 mg, taken at approximately the same time each day. If this dose proves insufficient, your doctor may increase it to 5 mg daily.

Daily dosing eliminates the need to time medication intake with sexual activity, providing more spontaneity and flexibility for intimacy.

Treating Benign Prostatic Hyperplasia with Cialis

Cialis is also effective in managing symptoms of benign prostatic hyperplasia (BPH), a condition characterized by an enlarged prostate gland.

What is the standard dosage for BPH treatment? For BPH symptoms, the usual dose is 5 mg once daily, taken at approximately the same time each day. This regimen can be continued for up to 26 weeks, as prescribed by your healthcare provider.

Combination Therapy for ED and BPH

In cases where a patient experiences both erectile dysfunction and BPH symptoms, Cialis can be prescribed as a dual-action treatment.

For combined ED and BPH treatment, the typical dosage is 5 mg once daily. This single daily dose addresses both conditions simultaneously, eliminating the need for separate medications or dosing schedules.

Dosage Adjustments for Special Populations

Certain medical conditions may necessitate dosage adjustments to ensure safe and effective use of Cialis.

Kidney and Liver Considerations

Patients with kidney or liver problems may require lower doses of Cialis. Why? The usual dosage may increase the risk of side effects in these populations due to altered drug metabolism and clearance.

Depending on the severity of kidney or liver impairment, your doctor might recommend occasional dosing instead of daily use for ED treatment. This approach helps minimize potential risks while still providing therapeutic benefits.

Maximizing Cialis Effectiveness

To get the most out of your Cialis treatment, it’s crucial to follow your prescribed regimen closely.

• For daily dosing, take Cialis at the same time each day to maintain consistent blood levels of the medication.
• If using Cialis occasionally, take it as directed before sexual activity.
• Avoid missing doses or taking doses late, as this can reduce the medication’s effectiveness.
• Do not exceed the maximum recommended dose of 20 mg per day.

How quickly does Cialis take effect? The onset of action can vary, but many men experience improved erectile function within 30 minutes to an hour after taking Cialis. However, for optimal results, it’s generally recommended to take Cialis at least 2 hours before sexual activity.

Long-Term Use and Safety Considerations

Cialis is typically prescribed for long-term use in treating both ED and BPH. If you and your healthcare provider determine that Cialis is safe and effective for you, you may continue using it as a long-term treatment option.

Are there any long-term risks associated with Cialis use? While Cialis is generally well-tolerated, long-term use should be monitored by a healthcare professional. Regular check-ups can help identify any potential side effects or changes in your health that may require dosage adjustments or alternative treatments.

Common Side Effects

Like all medications, Cialis can cause side effects. The most common include:

• Headache
• Indigestion
• Back pain
• Muscle aches
• Flushing
• Nasal congestion

These side effects are usually mild and tend to diminish over time. However, if you experience persistent or severe side effects, consult your healthcare provider promptly.

Interactions and Precautions

Cialis can interact with various medications and medical conditions. It’s crucial to inform your healthcare provider about all medications, supplements, and health conditions before starting Cialis treatment.

Important Interactions

Which medications should not be taken with Cialis? Cialis should not be used in combination with:

• Nitrates (used for chest pain)
• Certain blood pressure medications
• Other ED medications
• Recreational drugs known as “poppers”

These combinations can cause a dangerous drop in blood pressure.

Medical Conditions

Certain medical conditions may require special consideration when using Cialis:

• Heart disease
• Uncontrolled high or low blood pressure
• History of stroke or heart attack
• Liver or kidney disease
• Blood cell disorders
• Eye problems

Your healthcare provider will assess your overall health and medical history to determine if Cialis is safe and appropriate for you.

Lifestyle Considerations for Optimal Results

While Cialis can be highly effective in treating ED and BPH symptoms, combining medication with lifestyle modifications can enhance overall results and improve your quality of life.

Diet and Exercise

Maintaining a healthy diet and regular exercise routine can improve cardiovascular health, which is closely linked to erectile function. A balanced diet rich in fruits, vegetables, whole grains, and lean proteins can support overall health and potentially enhance the effectiveness of Cialis.

How does exercise impact erectile function? Regular physical activity improves blood flow throughout the body, including to the penis. This can lead to better erectile function and may enhance the effects of Cialis.

Stress Management

Stress and anxiety can significantly impact sexual performance and exacerbate ED symptoms. Incorporating stress-reduction techniques such as meditation, yoga, or deep breathing exercises can help manage stress levels and potentially improve sexual function.

Alcohol and Smoking

While moderate alcohol consumption is generally not contraindicated with Cialis, excessive alcohol intake can interfere with its effectiveness and increase the risk of side effects. Similarly, smoking can negatively impact erectile function and overall cardiovascular health.

Can quitting smoking improve ED symptoms? Yes, quitting smoking can lead to improvements in erectile function and overall sexual health. It may also enhance the effectiveness of ED treatments like Cialis.

Understanding Cialis’ Duration of Action

One of Cialis’ unique features is its long duration of action, which sets it apart from other ED medications.

Half-Life and Duration

Cialis has a half-life of approximately 17.5 hours, which means it remains active in the body for an extended period. This long half-life contributes to its nickname, “the weekend pill.”

How long does Cialis last? The effects of Cialis can last up to 36 hours after taking a dose. This extended duration allows for greater spontaneity in sexual activity compared to shorter-acting ED medications.

Onset of Action

While Cialis can start working within 30 minutes to an hour after ingestion, optimal effects are typically achieved after about 2 hours. This relatively quick onset, combined with its long duration, provides flexibility in timing sexual activity.

Comparing Cialis to Other ED Medications

Cialis is one of several PDE5 inhibitors available for treating erectile dysfunction. Understanding how it compares to other options can help inform treatment decisions.

Cialis vs. Viagra (Sildenafil)

The main difference between Cialis and Viagra lies in their duration of action. While Cialis can work for up to 36 hours, Viagra typically lasts for about 4-5 hours. Cialis also offers a daily dosing option, which Viagra does not.

Cialis vs. Levitra (Vardenafil)

Levitra has a similar onset of action to Cialis but a shorter duration, typically lasting about 4-5 hours. Like Viagra, Levitra is taken on an as-needed basis, whereas Cialis offers both as-needed and daily dosing options.

Cialis vs. Stendra (Avanafil)

Stendra is the newest FDA-approved ED medication. It has a rapid onset of action, potentially working within 15 minutes, but its effects last for about 6 hours. Cialis offers a longer duration of action but may take longer to start working.

Which ED medication is right for you? The choice between Cialis and other ED medications depends on various factors, including your lifestyle, sexual habits, and overall health. Consult with your healthcare provider to determine the most appropriate option for your individual needs.

Navigating Insurance Coverage and Cost Considerations

The cost of Cialis can vary depending on factors such as dosage, quantity, and whether you’re using the brand-name or generic version (tadalafil).

Insurance Coverage

Many insurance plans cover ED medications, including Cialis. However, coverage can vary widely between plans. Some insurers may require prior authorization or limit the number of pills covered per month.

How can you determine if Cialis is covered by your insurance? Contact your insurance provider directly or review your plan’s formulary to understand coverage details and any associated costs or restrictions.

Generic Options

Generic tadalafil is now available and is typically more affordable than brand-name Cialis. Generic versions contain the same active ingredient and are subject to the same FDA regulations for safety and efficacy.

Patient Assistance Programs

For those without insurance coverage or facing high out-of-pocket costs, patient assistance programs may be available. These programs, often offered by pharmaceutical companies, can provide discounts or free medication to eligible patients.

Where can you find information about patient assistance programs? Check the manufacturer’s website or speak with your healthcare provider about potential cost-saving options.

The Future of ED Treatment: Emerging Therapies and Research

While PDE5 inhibitors like Cialis have revolutionized ED treatment, ongoing research continues to explore new therapies and treatment modalities.

Gene Therapy

Researchers are investigating gene therapy approaches to treat ED by delivering genes that promote the production of proteins involved in erectile function.

Stem Cell Therapy

Early studies suggest that stem cell therapy may have potential in treating ED by regenerating damaged tissue and improving blood flow in the penis.

Novel Drug Delivery Systems

New methods of drug delivery, such as topical gels or dissolvable oral films, are being explored to potentially improve the efficacy and reduce side effects of ED medications.

What does the future hold for ED treatment? While current treatments like Cialis remain highly effective for many patients, ongoing research may lead to more targeted therapies and personalized treatment approaches in the coming years.

Conclusion: Optimizing Your Cialis Treatment

Cialis offers a versatile and effective treatment option for erectile dysfunction and benign prostatic hyperplasia. By understanding the available strengths, dosing options, and factors that influence its effectiveness, you can work with your healthcare provider to optimize your treatment plan.

Remember these key points for maximizing the benefits of Cialis:

• Take Cialis exactly as prescribed, whether for daily use or occasional use.
• Be aware of potential interactions with other medications and medical conditions.
• Combine medication with healthy lifestyle choices for optimal results.
• Stay informed about your treatment options and discuss any concerns with your healthcare provider.

With proper use and ongoing communication with your healthcare team, Cialis can be an effective tool in managing ED and BPH symptoms, improving your quality of life and sexual health.

Strengths, Form, When to Use, and More

Cialis (tadalafil) is prescribed to treat erectile dysfunction and symptoms of benign prostatic hyperplasia. It comes as a tablet that’s taken as needed or once per day, depending on the condition it’s treating.

Cialis is used in adult males.* It belongs to a group of drugs called phosphodiesterase 5 (PDE5) inhibitors. These drugs treat erectile dysfunction (ED) by relaxing blood vessels to increase blood flow into the penis. For symptoms of benign prostatic hyperplasia (BPH), they relax the bladder muscles, allowing urine to flow more easily.

This article describes the dosages of Cialis, including its form, strengths, and how to take the drug. To learn more about Cialis, see this in-depth article.

Note: This article covers typical dosages of Cialis, which are provided by the drug’s manufacturer. But when using Cialis, always take the dosage that your doctor prescribes.

* In this article, we use the term “male” to refer to someone’s sex assigned at birth. For information about the difference between sex and gender, see this article.

Get answers to common questions about the dosage of Cialis.

What form does Cialis come in?

Cialis comes as a tablet that you take by mouth.

Available strengths of Cialis (2.5 mg, 5 mg, 10 mg, 20 mg)

Cialis tablets come in four strengths: 2.5 milligrams (mg), 5 mg, 10 mg, and 20 mg.

What are the typical dosages of Cialis?

Typically, your doctor will start you on a low dosage. Then they’ll adjust your dosage over time to reach the right amount for you. Your doctor will ultimately prescribe the smallest dosage that provides the desired effect.

If you have certain kidney or liver problems, your doctor may prescribe a low dosage for you. This is because the usual dosage may increase the risk of side effects with your condition.

The information below describes the usual dosage recommendations for Cialis. But be sure to take the dosage your doctor prescribes for you. Your doctor will determine the best dosage to fit your needs.

Dosage for erectile dysfunction (ED)

There are two dosage options when Cialis is used to treat ED: dosage for occasional use and for daily use.

Occasional use for ED

With occasional use, you’ll take Cialis only as needed. You’ll likely take one 10-mg tablet before having sex.

Depending on how well the 10-mg dose works for your ED, your doctor may adjust your dose. It may be decreased to 5 mg or increased to 20 mg. You’ll continue to take it only as needed before sex.

You should not take Cialis more than once per day. You also should not take more than the recommended maximum dosage of Cialis, which is 20 mg per day. Taking higher dosages of Cialis than this, such as 40 mg per day, raises your risk for serious side effects. Examples of these side effects include very low blood pressure and priapism (a painful erection lasting 4 hours or longer).

Daily use for ED

With daily use, you’ll take one dose of Cialis per day. You don’t need to time your dose to be taken before having sex. You should take it around the same time each day.

For daily use of Cialis for ED, the usual starting dosage is 2.5 mg per day. If this dosage isn’t effective for you, your doctor may increase your dosage to 5 mg per day.

Dosage for benign prostatic hyperplasia (BPH)

The usual dosage of Cialis for BPH symptoms is 5 mg once per day for up to 26 weeks. You should take your dose around the same time each day.

Dosage for ED and BPH

If your doctor prescribes Cialis to treat ED along with BPH symptoms, you’ll take Cialis once per day.

For this use, the usual dosage is 5 mg per day. You should not take any additional doses of Cialis for occasional use before sex.

You don’t need to time your dose to be taken before having sex. You should take it around the same time each day.

Is Cialis used long term?

Yes, Cialis is typically used as a long-term treatment. If you and your doctor determine that it’s safe and effective for you, it’s likely that you’ll use Cialis long term.

Dosage adjustments

If you have certain kidney or liver problems, your doctor may prescribe a lower dosage of Cialis for you. This is because, with your condition, the usual dosage may raise your risk for side effects from the drug.

Depending on how severe your kidney or liver problems are, your doctor may recommend occasional dosing instead of daily dosing to treat ED.

How can I get the maximum effect from Cialis?

To get the maximum effect from Cialis, take it exactly as prescribed.

If you’re using once-daily Cialis for either erectile dysfunction (ED) or benign prostatic hyperplasia (BPH), take your dose around the same time each day. This helps keep a consistent amount of the drug in your body to provide the maximum effect. If you forget to take doses, skip doses, or take doses late, the medication won’t work as well.

If you’re prescribed occasional (as needed) Cialis for ED, it’s best to take your dose at least 2 hours before having sex. This is because it takes an average of 2 hours for the drug to reach its highest level in your body.

Because this is an average, you may notice better effects if you have sex a little sooner or a little later than this 2-hour timeframe. In studies, Cialis improved erectile function as soon as 30 minutes to as long as 36 hours after a dose was taken. As long as you do not take more than the maximum daily dose, you can experiment with how long you wait to have sex after taking a dose.

If you have other questions about how to get the most from Cialis, talk with your doctor or pharmacist.

If I take 5 milligrams (mg) of Cialis daily, how long does it take the drug to work?

Cialis starts working quickly. Studies show that the drug begins to work 30 minutes to 6 hours after you take your first dose. But it may take several days for the medication to reach its full effectiveness. If you don’t notice an improvement in your BPH symptoms or ED within a week of daily use, talk with your doctor. They may need to adjust your dosage.

Could I take an 80-mg dose of Cialis?

No, it’s not safe to take an 80-mg dose of Cialis. The maximum recommended daily dosage of Cialis is 20 mg per day if you take it as needed for ED. If you take Cialis daily, the maximum dosage is 5 mg per day.

Taking doses of Cialis above the recommended limit could lead to serious side effects, such as dangerously low blood pressure or priapism (a painful erection lasting 4 hours or longer).

What’s the typical Cialis dosage for a 70-year-old?

Cialis dosage is not based on your age alone. Instead, your doctor will prescribe the dosage that’s best for your condition. Before prescribing Cialis, your doctor may send you for a blood test to check how well your kidneys and liver are working. This is because they’ll take your kidney and liver health into consideration when determining your dosage.

For many people, their kidneys may not work as well as they age. So if you’re an older adult (ages 65 years and older), it may take longer for your body to break down and clear Cialis from your system. Older adults may also be more sensitive in how they react to Cialis, which may increase their risk for side effects.

If you’re 70 years old, your doctor will likely start you on a low dosage of Cialis. If it works well for you, you’ll probably continue taking a low dosage. If it doesn’t work well for you or you develop bothersome side effects, your doctor will adjust your dosage. The goal is to find the lowest dosage that effectively treats your BPH symptoms or ED without causing bothersome side effects.

If you have questions about what your Cialis dosage should be, talk with your doctor.

How do the dosages for Cialis and Viagra compare?

As ED treatments, both Cialis and Viagra can be taken occasionally (as needed) before sexual activity. The usual dosage for occasional Cialis use is one dose 2 hours before having sex. The usual dosage for occasional Viagra use is one dose 1 hour before having sex.

Cialis is also approved for once-daily dosing for ED, but Viagra is not. This is because the effects of Cialis on ED can last much longer than Viagra’s effects. One dose of Cialis can help improve erectile function for up to 36 hours. In comparison, Viagra’s effects can last up to 4 hours. But on average, its effects start to lessen 2 to 3 hours after you take a dose.

The typical dose for once-daily Cialis for ED is 2.5 milligrams (mg) to 5 mg. When used as needed for ED, the usual Cialis dose is 10 mg (with a maximum daily dose of 20 mg). The typical dose of Viagra for ED is 50 mg.

Talk with your doctor about whether Cialis or Viagra may be a better option for you.

You’ll take Cialis by mouth, either once per day or occasionally (as needed before sex).

The Cialis tablet should be swallowed whole. You can take it with or without food.

With once-daily Cialis, be sure to take it around the same time each day. When you’re taking Cialis once a day, there isn’t a best time to take Cialis. But taking your dose around the same time each day helps to keep a steady level of the drug in your body.

With occasional (as needed) use of Cialis, it’s recommended that you take your dose about 2 hours before having sex. This is because it takes an average of 2 hours for the drug to reach its highest level in your body.

Because this is an average, you may notice better effects if you have sex a little sooner or a little later than this 2-hour timeframe. In studies, Cialis improved erectile function as soon as 30 minutes to as long as 36 hours after a dose was taken.

If you have questions about taking Cialis, talk with your doctor or pharmacist.

Do not use more Cialis than your doctor prescribes. Using more than this can lead to serious side effects.

What to do in case you take too much Cialis

Call your doctor right away if you think you’ve taken/used too much Cialis. You can also call 800-222-1222 to reach the American Association of Poison Control Centers, or use its online resource. But if you have severe symptoms, call 911 (or your local emergency number) immediately or go to the nearest emergency room.

The dosage of Cialis you’re prescribed may depend on several factors. These include:

• the type and severity of the condition you’re using Cialis to treat
• your age
• other conditions you may have, such as kidney or liver problems (see “Dosage adjustments” under “What is Cialis’s dosage?”)

If your doctor prescribes once-daily Cialis for your condition, it’s best to take it around the same time each day. If you miss a dose, take it as soon as possible.

However, you should not take more than one dose of Cialis per day. Doing so could raise your risk for side effects, such as low blood pressure or priapism (a painful erection lasting 4 hours or longer).

If you need help remembering to take your dose of Cialis on time, try using a medication reminder. This can include setting an alarm or downloading a reminder app on your phone. A kitchen timer can work, too.

The sections above describe the typical dosages provided by the drug’s manufacturer. If your doctor recommends Cialis for you, they’ll prescribe the dosage that’s right for you.

Remember, you should not change your dosage of Cialis without your doctor’s recommendation. Only take Cialis exactly as prescribed. Talk with your doctor if you have questions or concerns about your current dosage.

Here are some examples of questions you may want to ask your doctor:

• How long should I give Cialis a chance to work before talking with my doctor about adjusting my dosage?
• Is once-daily or occasional dosing of Cialis more effective for erectile dysfunction?
• How can I tell if my Cialis dosage might need to be lowered?
• Would a different dosage raise or lower my risk for side effects from this drug?

To learn more about Cialis, see these articles:

• Cialis (tadalafil)
• Cialis and Cost: What You Need to Know
• Cialis Interactions: Alcohol, Medications, and Others

To get information on different conditions and tips for improving your health, subscribe to any of Healthline’s newsletters. You may also want to check out the online communities at Bezzy. It’s a place where people with certain conditions can find support and connect with others.

Q:

My doctor prescribed 10 mg of Cialis for occasional use to treat my erectile dysfunction (ED). I took one dose 2 hours before trying to have sex, but I still couldn’t get an erection. Should I try the same dose again before asking my doctor to increase my dose? Or if it didn’t help the first time, will this drug not work for me at all?

Anonymous

A:

Even though Cialis didn’t work this time, it doesn’t mean the drug won’t work at all or that the dose is too low. You can try taking the same dose but waiting longer before having sex.

The 2-hour timeframe is an average, so some people may notice better effects by having sex a little sooner or a little later after taking their dose. In studies, Cialis improved ED as soon as 30 minutes to as long as 36 hours after a dose was taken.

If the drug still doesn’t work after several attempts, or if you have questions or concerns about using Cialis, talk with your doctor.

The Healthline Pharmacist TeamAnswers represent the opinions of our medical experts. All content is strictly informational and should not be considered medical advice.

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Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.

Strengths, Form, When to Use, and More

Cialis (tadalafil) is prescribed to treat erectile dysfunction and symptoms of benign prostatic hyperplasia. It comes as a tablet that’s taken as needed or once per day, depending on the condition it’s treating.

Cialis is used in adult males.* It belongs to a group of drugs called phosphodiesterase 5 (PDE5) inhibitors. These drugs treat erectile dysfunction (ED) by relaxing blood vessels to increase blood flow into the penis. For symptoms of benign prostatic hyperplasia (BPH), they relax the bladder muscles, allowing urine to flow more easily.

This article describes the dosages of Cialis, including its form, strengths, and how to take the drug. To learn more about Cialis, see this in-depth article.

Note: This article covers typical dosages of Cialis, which are provided by the drug’s manufacturer. But when using Cialis, always take the dosage that your doctor prescribes.

* In this article, we use the term “male” to refer to someone’s sex assigned at birth. For information about the difference between sex and gender, see this article.

Get answers to common questions about the dosage of Cialis.

What form does Cialis come in?

Cialis comes as a tablet that you take by mouth.

Available strengths of Cialis (2.5 mg, 5 mg, 10 mg, 20 mg)

Cialis tablets come in four strengths: 2.5 milligrams (mg), 5 mg, 10 mg, and 20 mg.

What are the typical dosages of Cialis?

Typically, your doctor will start you on a low dosage. Then they’ll adjust your dosage over time to reach the right amount for you. Your doctor will ultimately prescribe the smallest dosage that provides the desired effect.

If you have certain kidney or liver problems, your doctor may prescribe a low dosage for you. This is because the usual dosage may increase the risk of side effects with your condition.

The information below describes the usual dosage recommendations for Cialis. But be sure to take the dosage your doctor prescribes for you. Your doctor will determine the best dosage to fit your needs.

Dosage for erectile dysfunction (ED)

There are two dosage options when Cialis is used to treat ED: dosage for occasional use and for daily use.

Occasional use for ED

With occasional use, you’ll take Cialis only as needed. You’ll likely take one 10-mg tablet before having sex.

Depending on how well the 10-mg dose works for your ED, your doctor may adjust your dose. It may be decreased to 5 mg or increased to 20 mg. You’ll continue to take it only as needed before sex.

You should not take Cialis more than once per day. You also should not take more than the recommended maximum dosage of Cialis, which is 20 mg per day. Taking higher dosages of Cialis than this, such as 40 mg per day, raises your risk for serious side effects. Examples of these side effects include very low blood pressure and priapism (a painful erection lasting 4 hours or longer).

Daily use for ED

With daily use, you’ll take one dose of Cialis per day. You don’t need to time your dose to be taken before having sex. You should take it around the same time each day.

For daily use of Cialis for ED, the usual starting dosage is 2.5 mg per day. If this dosage isn’t effective for you, your doctor may increase your dosage to 5 mg per day.

Dosage for benign prostatic hyperplasia (BPH)

The usual dosage of Cialis for BPH symptoms is 5 mg once per day for up to 26 weeks. You should take your dose around the same time each day.

Dosage for ED and BPH

If your doctor prescribes Cialis to treat ED along with BPH symptoms, you’ll take Cialis once per day.

For this use, the usual dosage is 5 mg per day. You should not take any additional doses of Cialis for occasional use before sex.

You don’t need to time your dose to be taken before having sex. You should take it around the same time each day.

Is Cialis used long term?

Yes, Cialis is typically used as a long-term treatment. If you and your doctor determine that it’s safe and effective for you, it’s likely that you’ll use Cialis long term.

Dosage adjustments

If you have certain kidney or liver problems, your doctor may prescribe a lower dosage of Cialis for you. This is because, with your condition, the usual dosage may raise your risk for side effects from the drug.

Depending on how severe your kidney or liver problems are, your doctor may recommend occasional dosing instead of daily dosing to treat ED.

How can I get the maximum effect from Cialis?

To get the maximum effect from Cialis, take it exactly as prescribed.

If you’re using once-daily Cialis for either erectile dysfunction (ED) or benign prostatic hyperplasia (BPH), take your dose around the same time each day. This helps keep a consistent amount of the drug in your body to provide the maximum effect. If you forget to take doses, skip doses, or take doses late, the medication won’t work as well.

If you’re prescribed occasional (as needed) Cialis for ED, it’s best to take your dose at least 2 hours before having sex. This is because it takes an average of 2 hours for the drug to reach its highest level in your body.

Because this is an average, you may notice better effects if you have sex a little sooner or a little later than this 2-hour timeframe. In studies, Cialis improved erectile function as soon as 30 minutes to as long as 36 hours after a dose was taken. As long as you do not take more than the maximum daily dose, you can experiment with how long you wait to have sex after taking a dose.

If you have other questions about how to get the most from Cialis, talk with your doctor or pharmacist.

If I take 5 milligrams (mg) of Cialis daily, how long does it take the drug to work?

Cialis starts working quickly. Studies show that the drug begins to work 30 minutes to 6 hours after you take your first dose. But it may take several days for the medication to reach its full effectiveness. If you don’t notice an improvement in your BPH symptoms or ED within a week of daily use, talk with your doctor. They may need to adjust your dosage.

Could I take an 80-mg dose of Cialis?

No, it’s not safe to take an 80-mg dose of Cialis. The maximum recommended daily dosage of Cialis is 20 mg per day if you take it as needed for ED. If you take Cialis daily, the maximum dosage is 5 mg per day.

Taking doses of Cialis above the recommended limit could lead to serious side effects, such as dangerously low blood pressure or priapism (a painful erection lasting 4 hours or longer).

What’s the typical Cialis dosage for a 70-year-old?

Cialis dosage is not based on your age alone. Instead, your doctor will prescribe the dosage that’s best for your condition. Before prescribing Cialis, your doctor may send you for a blood test to check how well your kidneys and liver are working. This is because they’ll take your kidney and liver health into consideration when determining your dosage.

For many people, their kidneys may not work as well as they age. So if you’re an older adult (ages 65 years and older), it may take longer for your body to break down and clear Cialis from your system. Older adults may also be more sensitive in how they react to Cialis, which may increase their risk for side effects.

If you’re 70 years old, your doctor will likely start you on a low dosage of Cialis. If it works well for you, you’ll probably continue taking a low dosage. If it doesn’t work well for you or you develop bothersome side effects, your doctor will adjust your dosage. The goal is to find the lowest dosage that effectively treats your BPH symptoms or ED without causing bothersome side effects.

If you have questions about what your Cialis dosage should be, talk with your doctor.

How do the dosages for Cialis and Viagra compare?

As ED treatments, both Cialis and Viagra can be taken occasionally (as needed) before sexual activity. The usual dosage for occasional Cialis use is one dose 2 hours before having sex. The usual dosage for occasional Viagra use is one dose 1 hour before having sex.

Cialis is also approved for once-daily dosing for ED, but Viagra is not. This is because the effects of Cialis on ED can last much longer than Viagra’s effects. One dose of Cialis can help improve erectile function for up to 36 hours. In comparison, Viagra’s effects can last up to 4 hours. But on average, its effects start to lessen 2 to 3 hours after you take a dose.

The typical dose for once-daily Cialis for ED is 2.5 milligrams (mg) to 5 mg. When used as needed for ED, the usual Cialis dose is 10 mg (with a maximum daily dose of 20 mg). The typical dose of Viagra for ED is 50 mg.

Talk with your doctor about whether Cialis or Viagra may be a better option for you.

You’ll take Cialis by mouth, either once per day or occasionally (as needed before sex).

The Cialis tablet should be swallowed whole. You can take it with or without food.

With once-daily Cialis, be sure to take it around the same time each day. When you’re taking Cialis once a day, there isn’t a best time to take Cialis. But taking your dose around the same time each day helps to keep a steady level of the drug in your body.

With occasional (as needed) use of Cialis, it’s recommended that you take your dose about 2 hours before having sex. This is because it takes an average of 2 hours for the drug to reach its highest level in your body.

Because this is an average, you may notice better effects if you have sex a little sooner or a little later than this 2-hour timeframe. In studies, Cialis improved erectile function as soon as 30 minutes to as long as 36 hours after a dose was taken.

If you have questions about taking Cialis, talk with your doctor or pharmacist.

Do not use more Cialis than your doctor prescribes. Using more than this can lead to serious side effects.

What to do in case you take too much Cialis

Call your doctor right away if you think you’ve taken/used too much Cialis. You can also call 800-222-1222 to reach the American Association of Poison Control Centers, or use its online resource. But if you have severe symptoms, call 911 (or your local emergency number) immediately or go to the nearest emergency room.

The dosage of Cialis you’re prescribed may depend on several factors. These include:

• the type and severity of the condition you’re using Cialis to treat
• your age
• other conditions you may have, such as kidney or liver problems (see “Dosage adjustments” under “What is Cialis’s dosage?”)

If your doctor prescribes once-daily Cialis for your condition, it’s best to take it around the same time each day. If you miss a dose, take it as soon as possible.

However, you should not take more than one dose of Cialis per day. Doing so could raise your risk for side effects, such as low blood pressure or priapism (a painful erection lasting 4 hours or longer).

If you need help remembering to take your dose of Cialis on time, try using a medication reminder. This can include setting an alarm or downloading a reminder app on your phone. A kitchen timer can work, too.

The sections above describe the typical dosages provided by the drug’s manufacturer. If your doctor recommends Cialis for you, they’ll prescribe the dosage that’s right for you.

Remember, you should not change your dosage of Cialis without your doctor’s recommendation. Only take Cialis exactly as prescribed. Talk with your doctor if you have questions or concerns about your current dosage.

Here are some examples of questions you may want to ask your doctor:

• How long should I give Cialis a chance to work before talking with my doctor about adjusting my dosage?
• Is once-daily or occasional dosing of Cialis more effective for erectile dysfunction?
• How can I tell if my Cialis dosage might need to be lowered?
• Would a different dosage raise or lower my risk for side effects from this drug?

To learn more about Cialis, see these articles:

• Cialis (tadalafil)
• Cialis and Cost: What You Need to Know
• Cialis Interactions: Alcohol, Medications, and Others

To get information on different conditions and tips for improving your health, subscribe to any of Healthline’s newsletters. You may also want to check out the online communities at Bezzy. It’s a place where people with certain conditions can find support and connect with others.

Q:

My doctor prescribed 10 mg of Cialis for occasional use to treat my erectile dysfunction (ED). I took one dose 2 hours before trying to have sex, but I still couldn’t get an erection. Should I try the same dose again before asking my doctor to increase my dose? Or if it didn’t help the first time, will this drug not work for me at all?

Anonymous

A:

Even though Cialis didn’t work this time, it doesn’t mean the drug won’t work at all or that the dose is too low. You can try taking the same dose but waiting longer before having sex.

The 2-hour timeframe is an average, so some people may notice better effects by having sex a little sooner or a little later after taking their dose. In studies, Cialis improved ED as soon as 30 minutes to as long as 36 hours after a dose was taken.

If the drug still doesn’t work after several attempts, or if you have questions or concerns about using Cialis, talk with your doctor.

The Healthline Pharmacist TeamAnswers represent the opinions of our medical experts. All content is strictly informational and should not be considered medical advice.

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Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional. You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained herein is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.

Cialis instructions for use, price: Side effects, composition, dosage

THERE ARE CONTRAINDICATIONS. POSSIBLE SIDE EFFECTS. A SPECIALIST’S CONSULTATION IS REQUIRED. For men For potency

Author of the article

Zotina Natalya Igorevna,

Diploma of pharmaceutical education: 105924 1197876, reg. number 30353

All authors

Contents of the article

• Cialis: composition
• Cialis: active ingredient
• Cialis: side effects
• Cialis: contraindications
• Cialis or Viagra
• Tadalafil or Cialis: which is better?
• Cialis or Levitra: which is better?
• Zidena or Cialis: which is better?
• Executive summary
• Ask an expert about the topic of the article

The first effective drug for the treatment of erectile dysfunction (ED) appeared in 1998 and literally “blew up” the market. It was Viagra, which in 2000 accounted for 90% of sales of drugs to improve potency. But by 2007, this figure had dropped to 50% “thanks” to the analogue of Cialis, which appeared in 2003.

We asked pharmacist Natalya Zotina to tell us more about Cialis: what active ingredient is included in the composition, what side effects and contraindications it has. And also compare the drug with other drugs that are prescribed for ED.

Cialis: composition

Cialis is produced in tablets containing the active substance and excipients. The active substance in the preparation is tadalafil, lactose, hyprolose, sodium lauryl sulfate, cellulose, magnesium stearate are added as auxiliary.

Cialis preparations for men containing tadalafil 5 mg and 20 mg are registered in Russia.

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Cialis: active substance

The active substance of Cialis tadalafil inhibits the enzyme phosphodiesterase (PDE-5). As a result, in the presence of nitric oxide, the walls of the vessels of the cavernous bodies are relaxed and filled with blood. This ensures an erection in response to sexual arousal.

The drug itself does not increase sexual desire. If there is no attraction to a partner, then the medicine will not help.

Cialis for men: instructions

Cialis 5 mg is used to treat erectile dysfunction, including lower urinary tract symptoms in benign prostatic hyperplasia.

Cialis 20 mg is used only for ED 30 minutes before intercourse, regardless of food intake. This dosage is not recommended for daily use. With frequent sexual activity, it is better to take Cialis at a dose of 5 mg or even 2.5 mg once a day at the same time. The dose depends on individual sensitivity.

Cialis side effects

The most frequently reported side effects of Cialis are:

• headache
• dyspepsia
• back and muscle pain

Moreover, the frequency of adverse reactions increased with the dose of Cialis. They are transitory. So, a headache with daily use of the drug lasts the first 10-30 days, then it goes away.

Cialis and alcohol are compatible. Simultaneous administration of the drug and ethyl alcohol does not affect the concentration of both substances, does not reduce pressure, and does not affect cognitive functions.

Cialis: contraindications

Cialis should not be administered or taken to patients in the following cases:

• hypersensitivity to drug components
• treatment with organic nitrates (nitroglycerin) – pressure reduction possible
• children under 18 years of age
• diseases of the cardiovascular system, suggesting restriction of sexual activity: myocardial infarction, unstable angina, chronic heart failure, uncontrolled arrhythmia, hypotension, stroke in the last six months
• loss of vision in one eye due to optic neuropathy
• concomitant use of doxazosin and other drugs for the treatment of ED
• severe renal failure

Cialis or Viagra

Viagra is the first and still popular drug for ED. The drug has two main differences from Cialis: the active substance and the duration of action.

Viagra contains sildenafil, which begins to “work” 30 minutes after taking it for 4 hours. A man can feel the effect of tadalafil in Cialis earlier – after 16 minutes. In this case, the drug maintains an erection for 36 hours. In addition, Cialis achieves the desired effect at a lower dosage: its maximum daily dose is 20 mg versus 100 mg for Viagra. At a lower dose, the risk of developing negative reactions is lower.

The absorption and rate of action of Viagra is affected by food intake. Cialis is devoid of this drawback.

Thanks to its benefits, Cialis quickly became popular in many countries.

Viagra and Cialis are available by prescription. The selection of the optimal remedy should be carried out by the doctor, taking into account the age of the patient, the severity of the condition, concomitant diseases, and medications taken.

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Tadalafil or Cialis: which is better?

Drugs with the name Tadalafil are generics of the original Cialis of Russian, Polish, Indian and other countries of origin.

Indications, contraindications, side effects are identical for analogues. The difference is that among Tadalafils you can find dosages of 2.5 mg, 5 mg, 10 mg and 20 mg. This makes it easier for the doctor to select the optimal treatment regimen and saves the patient’s money.

Substances for the production of Tadalafil tablets, mainly of Indian and Chinese origin. The Swiss manufacturer of Cialis uses pharmaceutical raw materials from the USA and Puerto Rico. The cost of Tadalafil is lower than Cialis. The patient can substitute these drugs for each other based on their preferences.

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Cialis or Levitra: which is better?

Levitra tablets contain 5, 10 and 20 mg vardenafil. The mechanism of action of Levitra is similar to that of Cialis. Indications for use – erectile dysfunction. Cialis is also prescribed for the treatment of benign prostatic hyperplasia.

The main difference between the drugs is the duration of action. Cialis works up to 36 hours, Levitra 8-12 hours. But the recommended dose for Levitra is less and equal to 10 mg, for Cialis – 20 mg. Therefore, Levitra is preferred to be prescribed to men with chronic diseases to reduce the risk of side effects.

In the case of Cialis, dose adjustment for elderly patients is not required. But if men over 65 plan to take the maximum dose of Levitra 20 mg, it is better to consult a doctor.

Fatty food affects the speed of action of Levitra. Alcohol also impairs erection. Both drugs have their own benefits. The doctor will tell you which of these drugs is suitable for a particular patient.

All products Levitra

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Zidena or Cialis: which is better?

Zydena is one of the new drugs for the treatment of ED with the active ingredient udenafil. It was registered in Russia in 2008. Zidena is indicated for the treatment of ED only. Unlike Cialis, she has only two contraindications: hypersensitivity and taking nitrate drugs.

Zidena has one dosage form: 100 mg tablets. The maximum daily dosage is 200 mg. The drug begins to act 30 minutes after taking the pill. The period of effectiveness of one dose of Zidena is up to 24 hours (in the presence of sexual arousal). Cialis works faster and longer at a lower dose.

Zidena has a high security profile. The drug does not have such side effects as myalgia and back pain, characteristic of Cialis. The intake of alcohol and fatty foods does not affect the action of udenafil, which makes taking Zydena as convenient as possible for patients.

We recommend that you discuss Zidena or Cialis with your doctor. These drugs are prescription drugs, self-medication and self-administration can harm your health.

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Summary

• Cialis contains the active ingredient tadalafil. The drug is produced in tablets of 5 and 20 mg.
• Cialis active ingredient tadalafil increases blood flow to the cavernous bodies and provides an erection in the presence of sexual arousal.
• Cialis is well tolerated, side effects include headache, dyspepsia, back and muscle pain.
• First of all, Cialis is contraindicated in patients under 18 years of age and those with serious diseases of the cardiovascular system, as well as those taking nitrate drugs.
• The choice of drug for the treatment of ED (Cialis, Viagra, Zidena, Levitra) should be entrusted to the doctor. The efficacy and safety of these drugs for the treatment of patients with ED has been confirmed in numerous clinical studies.

Ask an expert about the topic of the article

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