CLICK HERE TO HAVE A LOOK ON THE LIST OF GENERIC ED MEDICINES 

Many men take medicine to treat erectile dysfunction. The prescription drugs that the FDA has approved to treat ED are: 

• Avanafil (Stendra),
• Tadalafil (Cialis)
• Vardenafil (Levitra, Staxyn)
• Sildenafil (Viagra)

They all work by boosting blood flow to the penis to make erections easier to get.

What Are the Differences Between These Drugs?

Cialis, Levitra, Staxyn, Stendra, and Viagra work similarly. There are subtle differences in how long the drug works and how quickly it works.

Levitra works a little longer than Viagra. They both take effect in about 30 minutes. With Levitra, the effects last for about 5 hours. With Viagra, they last about 4 hours.

Cialis works much longer -- up to 36 hours in some cases. Stendra can start doing its thing in as little as 15 minutes, and its effects last up to 6 hours.

Staxyn dissolves in your mouth. It contains the same active ingredient as Levitra, but it should not replace Levitra. It also can begin working in about 15 minutes.

If One of These Doesn't Help Me, Can I Try Another?

Yes. But because these drugs work the same way, you're likely to have similar results.