Medically reviewed by Jamin Brahmbhatt, MD Key Takeaways Take Cialis at least two hours before sex for the best results.Avoid ...

This article was reviewed by Martin Miner, MD. Cialis, which contains the active ingredient tadalafil, is one of the most popular medications for ED. It belongs to a class of drugs known as ...

Cialis is one of the most effective treatments for ED on the market today — but what about tomorrow, next month and two decades from now? Just how effective and safe is Cialis over the long term? It’s ...

Taking the erectile dysfunction drug Cialis while receiving radiation therapy for prostate cancer doesn't seem to help men's sexual function after treatment, a new study finds. About 40 percent of men ...