Medically reviewed by Matthew Wosnitzer, MD Key Takeaways Viagra lasts for about four hours, but it can last longer in some ...

This article was reviewed by Kelly Brown MD, MBA. Whether you’re a senior in high school or a senior-living resident, you’ve likely heard of Viagra (sildenafil) — the original medication for ED. Most ...

This article was reviewed by Lynn Marie Morski, MD, JD. Many men wrongly believe that ED medications like Viagra, Cialis, or Levitra can cause arousal without stimulation. And some men even mistakenly ...