Cialis is an FDA-approved, prescription-only medication for treating Erectile Dysfunction (ED) and Benign Prostatic Hyperplasia (BPH) in men. Its active ingredient is a Phosphodiesterase Type 5 (PDE-5) inhibitor called Tadalafil. Cialis is the brand version manufactured by Eli Lilly, which is now widely available in generic forms.
The efficacy of this medicine significantly relies on the correct dosage. When treating ED and BPH, a daily dose of 2.5 mg and 5 mg is considered effective and safe, respectively. If the dose is too high, it can increase the risk of side effects or trigger health risks. At the same time, a low dose can be ineffective in treating ED or BPH. Therefore, it becomes necessary to learn about the strengths and dosage of this Tadalafil-containing medication.
In this article, we will talk about Cialis dosage, strengths and formulations, and special-case adjustments for both ED and BPH. You’ll also learn what to do in case of taking an incorrect dose to prevent any potential risks.
Cialis dosage for ED
Cialis is available in doses of 2.5 mg, 5 mg, 10 mg, and 20 mg. It’s known as the weekend pill for its 36-hour effectiveness. Given below is its dosage for:
As-needed:
- The recommended dosage is generally 10 mg.
- It is taken 30-60 minutes before indulging in sexual activity.
- If 10 mg is too strong, it can be reduced to 5 mg after consulting a doctor.
- The maximum dosage for ED is 20 mg, taken once a day.
Daily use:
- The usual starting dose is 2.5 mg.
- It can be increased to 5 mg by a doctor, on the basis of tolerability and effectiveness.
- It should be taken at the same time every day. No need to schedule it with sexual activity.

