Comparisons · FAQ
Does tadalafil last longer than sildenafil, and what does that mean?
Short answer
Tadalafil generally has a longer treatment window than sildenafil: up to 36 hours versus about 4 to 6 hours. Results vary. This means you may be able to get an erection with sexual stimulation during that window. It does not mean you should have an erection the whole time.
Tadalafil can support an erectile response for up to 36 hours after an as-needed dose. Sildenafil generally works for about 4 to 6 hours. Results vary. The treatment window describes when the medicine may help with sexual stimulation, not how long an erection should last.
A longer window may allow more flexibility around sex. Results vary. It does not mean tadalafil is stronger or better for everyone. Some people prefer a shorter-acting option, while others prefer less need to plan the exact time of sex.
The medicine can remain in your body after the most noticeable effects fade. This matters when considering side effects, interacting medicines, or switching treatments. Do not use the end of the treatment window as proof that it is safe to take another erectile dysfunction drug or a nitrate.
An erection lasting longer than 4 hours is a medical emergency, even if it is not painful. Seek emergency care right away. Do not wait for the medicine to wear off.
Sources
Written by the Verra clinical team · Medical review pending
General information, not medical advice. If you're in crisis, call or text 988.
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