How Long Does Tadalafil Last? Cialis Duration, Onset & 36-Hour Effect Window

Quick Summary

Tadalafil (Cialis) is a long-acting PDE5 inhibitor used for erectile dysfunction. It is known for its extended duration compared to other ED medications.

Onset: 30–60 minutes
Peak effect: 2–6 hours
Duration: up to 36 hours

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Tadalafil Effect Timeline

0–30 min

Absorption Phase

Drug begins entering bloodstream. No noticeable effect yet.

30–60 min

Onset Phase

Initial effects begin with sexual stimulation required.

2–36 hours

Active Window

Extended therapeutic effect period compared to sildenafil.

What Affects Tadalafil Duration?

Dosage (2.5mg–20mg)
Daily vs as-needed use
Metabolism and age
Liver and kidney function
Alcohol intake

How Tadalafil Compares

Compared to sildenafil (Viagra), tadalafil lasts significantly longer and offers a wider therapeutic window. This makes it suitable for more spontaneous sexual activity.

FAQ

Tadalafil can remain effective for up to 36 hours depending on dose and individual response.

Most users experience onset within 30–60 minutes.

Food has minimal effect on tadalafil compared to sildenafil.

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