Viagra, Levitra or Cialis are often the first treatment tried for erectile dysfunction. For most men who have trouble keeping an erection firm enough for sex (erectile dysfunction), these medications work well and cause few side effects.
Viagra, Levitra and Cialis - How they're differentAlthough they work in similar ways, each of these medications has a slightly different chemical makeup. These minor differences affect the way each medication works, such as how quickly it takes effect and wears off, and the potential side effects. Your doctor will consider these factors when deciding if one of these medications is a good choice for you. Your doctor will also consider any health problems you have and possible interactions with other medications you take.
Side effectsMost men who take Viagra, Levitra and Cialis aren't bothered by side effects. When side effects do occur, they can include:
- Stuffy or runny nose
- Back pain and muscle aches (with Levitra)
- Temporary vision changes, including "blue vision" (with Viagra)
- Hearing loss or vision loss.
- An erection that doesn't go away on its own.