See below.: The film coated tab is intended to be a once a day medication. It may last up to 4 hours. If you are having trouble with the dose, it can be increased to 20 mg. You should be sure to take it on an empty stomach. If the duration is a problem try switching to tadalafil. It lasts up to 36 hours.
Answered 3/26/2013
5.4k views
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
3 doctors weighed in across 3 answers
4 doctors weighed in across 3 answers
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question