Is Low-Dose Daily Cialis/Tadalafil Effective in Treating Erectile Dysfunction/ED?
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.
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We publish reviews collected through independent platforms including Reviews.io and Trustpilot. Why this page was updated on Sep 19, 2025 Content checked and updated as part of our 3-yearly periodic review, to ensure accuracy and currentness. Cialis is available in tablet form in strengths of 2.5 milligrams (mg), 5 mg, 10 mg, and 20 mg. The dosage varies depending on the condition being treated and whether it’s prescribed for occasional or daily use. For erectile dysfunction, Cialis can be taken occasionally as needed (10 mg, adjusted to 5 mg or 20 mg) or daily (2.5 mg, adjusted to 5 mg).
Lifestyle matters: better results with both Cialis and Viagra with good health habits
But it should not be taken more than once per day. For benign prostatic hyperplasia, the recommended dose of Cialis for once daily use is 5 mg, taken at approximately the same time every day. Cialis (tadalafil) is a prescription drug used to treat erectile dysfunction and symptoms of benign prostatic hyperplasia. (An active ingredient is what makes a medication work.) Cialis belongs to a group of drugs called phosphodiesterase type 5 inhibitors. This article describes the dosages of Cialis, as well as its strengths and how to take it.
Does insurance cover Cialis?
To learn more about Cialis, including its cost and side effects, see this Cialis overview article. Your doctor will likely start you on a low dosage of Cialis and adjust it over time to reach the right amount for you. They’ll ultimately prescribe the smallest dosage that provides the desired effect. But be sure to take the dosage your doctor prescribes for you. In some cases, doctors may adjust your dosage from those described here. For occasional (as needed) use for ED, take one Cialis tablet cialis 20mg lilly at least 30 minutes before anticipated sexual activity. In most cases, the ability to have sexual intercourse will be increased for up to 36 hours. If you have questions about taking Cialis, talk with your doctor or pharmacist.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Cialis Soft Tabs | 20mg | 270 + 10 Pills | 471.40€ 448.95€ | |
| Cialis Black | 80mg | 60 + 4 Pills | 150.98€ 143.79€ | |
| Cialis Professional | 40mg | 90 + 2 Pills | 348.59€ 331.99€ | |
| Cialis Generic | 60mg | 60 + 4 Pills | 145.06€ 138.15€ | |
| Cialis Professional | 20mg | 180 + 4 Pills | 423.11€ 402.96€ | |
| Cialis Original | 20mg | 8 Pills | 61.70€ 58.76€ | |
| Cialis Generic | 20mg | 60 + 6 Pills | 117.76€ 112.15€ | |
| Cialis Generic | 40mg | 20 Pills | 59.47€ 56.64€ | |
| Cialis Generic | 5mg | 270 + 10 Pills | 205.81€ 196.01€ | |
| Cialis Original | 20mg | 4 Pills | 41.99€ 39.99€ | |
| Cialis Generic | 60mg | 10 Pills | 41.22€ 39.26€ | |
| Cialis Professional | 20mg | 270 + 6 Pills | 623.07€ 593.40€ | |
| Cialis Generic | 10mg | 20 Pills | 48.23€ 45.93€ | |
| Cialis Professional | 20mg | 90 + 2 Pills | 241.49€ 229.99€ | |
| Cialis Generic | 5mg | 90 + 6 Pills | 115.91€ 110.39€ |
Cialis is usually a long-term treatment. If you and your doctor determine that it’s safe and effective for your condition, you’ll likely take it long term once you reach your maintenance dose. Optum Perks is owned by RVO Health. By clicking on this link, we may receive a commission. 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 of 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. Do not take more Cialis than your doctor prescribes, as this can lead to harmful effects. Call your doctor right away if you think you’ve taken too much Cialis. You can also call 800-222-1222 to reach America’s Poison Centers or use its online resource.
Get Cialis online: prescriptions available for ED treatment with top doctors
Cialis is available as an oral tablet that you swallow. Cialis is approved by the Food and Drug Administration (FDA) to treat the following: The prescribed Cialis dosage may vary depending on the condition it’s being used to treat. Notify them if you experience any Cialis side effects that may prevent you from taking your medication. There are two dosage options when Cialis is used to treat ED: dosage for occasional (as needed) use and for daily use. With occasional use, you’ll take Cialis only as needed.
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You’ll likely take one 10-mg tablet buy cialis 5mg before sexual activity. 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 sexual activity. You should not take Cialis more than once per day.
Could I take an 80-mg dose of Cialis?
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 of serious side effects. Examples of these side effects include very low blood pressure and priapism (a painful erection lasting 4 hours or longer). With daily use, you’ll take one dose of Cialis per day. You don’t need to time your dose to be taken before sexual activity. But if you have severe symptoms, immediately call 911 (or your local emergency number) or go to the nearest emergency room. The following are answers to some commonly asked questions about Cialis dosage.
| Contraindication | Explanation | Risks if Ignored |
|---|---|---|
| Nitrates | Can cause severe hypotension | Heart attack, stroke |
| Severe Liver Disease | Impaired drug metabolism | Liver failure |
| Severe Heart Conditions | Increased cardiovascular risk | Heart attack |
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.
- The half-life of Tadalafil is approximately 17.5 hours.
- This long half-life is the reason for its extended duration of action.
- It takes about 5 half-lives for a drug to be almost entirely eliminated from the body.
- Therefore, it can remain in your system for several days after a dose.
- This is important to remember for potential drug interactions.
- Inform any new doctor or dentist that you are taking Tadalafil.
- This is especially crucial before any surgical or dental procedure.
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. When prescribed for ED, take one Cialis tablet at least 30 minutes before anticipated sexual activity.
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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. When used for benign prostatic hyperplasia (BPH), the recommended dose of Cialis for once daily use is 5 mg, taken at approximately the same time every day. When Cialis is prescribed along with the drug finasteride for BPH, the recommended Cialis dose for once daily use is 5 mg, taken at approximately the same time every day for up to 26 weeks.
Why many men prefer Cialis over Viagra
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 sexual activity. If you have certain kidney problems 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 of side effects from the drug.
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Depending on how severe your kidney or liver problems are, your doctor may recommend occasional dosing instead of daily dosing to treat ED. You’ll take Cialis by swallowing it, either once per day or occasionally (as needed before sexual activity). 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. If you have other questions about how to get the most from Cialis, talk with your doctor or pharmacist. 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 a reduction in your BPH symptoms or ED within a week of daily use, talk with your doctor. They may need to adjust your dosage.
| Drug Category | Interaction Effect | Recommended Action |
|---|---|---|
| Alpha-blockers | Increased risk of hypotension | Monitor blood pressure closely |
| Antifungals (e.g., ketoconazole) | Increased Cialis levels | Dose adjustment or avoid combination |
| Grapefruit juice | Affects metabolism, increases levels | Avoid consumption during therapy |
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 over 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). 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 (age 65 years or older), it may take longer for your body to break down and clear Cialis from your system.
| Side Effect | Frequency | Severity | Suggestions |
|---|---|---|---|
| Headache | Common | Mild | OTC pain relievers |
| Flushing | Common | Mild | Cool compress |
| Muscle Pain | Less common | Mild | Rest, hydration |
Older adults’ bodies also be more sensitive in how they react to Cialis, which may increase their risk of side effects. If you’re 70 years old, your doctor will likely start you on a low dosage of Cialis.
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These cause a drop in blood pressure, which can be dangerous and never take double doses or split doses. 2004.The efficacy and safety of tadalafil: an update. Tadalafil administered once daily for lower urinary tract symptoms secondary to benign prostatic hyperplasia: A dose finding study. The Journal of Urology, 180(4), 1228-1234 Coward, Robert M., Carson, Culley C. 2008.
What is the downside of Cialis?
Tadalafil in the treatment of erectile dysfunction. A comparison of the efficacy and tolerability of tadalafil 10 mg and 20 mg in Japanese patients with severe erectile dysfunction. The journal of sexual medicine, 4(3), pp.745–752. This page was medically reviewed by Dr Alexandra Cristina Cowell, Writer & Clinical Content Reviewer on Sep 03, 2025. Next review due on Sep 03, 2028.
Cialis form
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. We couldn't find what you're looking for. Or, if you're looking for something we don't have yet, you can suggest something. All of our reviews are collected from real patients after their treatment has been delivered. 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.
- Tadalafil is the generic name for the active drug in Cialis.
- Generic medications are bioequivalent to their brand-name counterparts.
- This means they work in the same way and have the same safety profile.
- Generics are approved by regulatory agencies like the FDA after rigorous testing.
- Choosing generic Tadalafil can result in substantial cost savings.
- The appearance (color, shape) of generic pills may differ from brand-name Cialis.
- The dosage strength (e.g., 10mg) and effectiveness remain identical.
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 10-mg tablet at least 30 minutes before anticipated sexual activity.