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Frequently Asked Questions

I have tried Levitra and I wasn't satisfied with the results. If I try to use another similar medication, like Viagra or Cialis, will they work for me?

Short Answer

It depends on the cause of your ED and the results you achieved from the medication you tried.

Long Answer

Viagra/Revatio/Caverta (sildenafil citrate), Cialis (tadalafil), and Levitra/Vivanza (vardenafil hydrochloride) are all from the same men's health family of medications; they are PDE5 inhibitors. All work in a similar way to increase the amount of blood flow to the penis, facilitating an erection.

Erectile Dysfunction may be caused by many different things. If the cause of your ED has nothing to do with the blood flow to the penis (nerve damage, for example), then you will probably get little results from any PDE5 inhibitor.

If, however, your ED is caused by a blood flow problem and can be treated with PDE5 inhibitors, then trying a different medication from the same family makes sense. Each medication has advantages and disadvantages, including cost, side effects, and how long it lasts in your system.

Here are a few points for each of the three drugs mentioned. Talk to your medical advisor to see which one is right for you.

Levitra
  • Dosage: 2.5mg to 20mg tablets.
  • Take no more than once a day, 60 minutes before sexual activity. May be taken with or without food.
  • FDA approved 2003.
Viagra
  • Dosage: 25mg to 100mg tablets.
  • Take 60 minutes before sexual activity. May be taken with or without food, but is absorbed more slowly with high fat meals.
  • First-generation PDE5 inhibitor. FDA approved 1998.
Cialis
  • Dosage: 10mg to 20mg tablets.
  • Take no more than once a day, 60 minutes before sexual activity. May be taken with or without food.
  • FDA approved 2003.

Additional Information

Viagra/Revatio/Caverta [Sildenafil (sil-DEN-a-fil)]

Sildenafil (Oral Route) (MayoClinic.com)

Sildenafil for erectile dysfunction (Patient.co.uk)

Sildenafil (Wikipedia.org)

Cialis [Tadalafil (tah-DAL-a-fil)]

Tadalafil (Oral Route) (MayoClinic.com)

Tadalafil for erectile dysfunction - Cialis (Patient.co.uk)

Tadalafil (Wikipedia.org)

Levitra/Vivanza [Vardenafil HCL (var-DEN-a-fil)]

Vardenafil (Oral Route) (MayoClinic.com)

Vardenafil for erectile dysfunction (Patient.co.uk)

Vardenafil (Wikipedia.org)

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