Caverject treats erectile dysfunction. This medication is injected into the penis. Should produce an erection in 5 to 20 minutes and the erection should last for about 1 hour.

Caverject Overview


Caverject is a prescription medication used to certain types of erectile dysfunction. Caverject belongs to a group of drugs called vasodilators. These work by relaxing the muscles and blood vessels in the penis so that an erection can occur.

This medication comes in solution form to be injected into the penis before sexual activity. 

You should be shown by a healthcare professional proper technique before self-use.

A common side effect of Caverject is penis pain. 

Patient Ratings for Caverject

How was your experience with Caverject?

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What are you taking Caverject for?

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  • Other
  • Aortic Arch Syndromes
  • Aortic Coarctation
  • Ductus Arteriosus, Patent
  • Hypertension, Pulmonary
  • Hypoplastic Left Heart Syndrome
  • Impotence, Vasculogenic
  • Pulmonary Valve Stenosis
  • Tetralogy Of Fallot
  • Tricuspid Atresia

How long have you been taking it?

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  • Less than a week
  • A couple weeks
  • A month or so
  • A few months
  • A year or so
  • Two years or more

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Uses of Caverject

Caverject is a prescription medication used to treat certain types of erectile dysfunction.

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.



For more information on this medication choose from the list of selections below.

Caverject Drug Class

Caverject is part of the drug class:

Side Effects of Caverject

Serious side effects have been reported with Caverject.

Common side effects of Caverject include the following:

  • pain in the penis
  • development of fibrous scar tissue inside the penis that causes curved, painful erections
  • numbness in the penis
  • yeast infection 
  • irritation of the penis
  • sensitivity in the penis 
  • strange feeling of penis
  • discoloration of penile head
  • itch at tip of penis
  • redness of the penis due to increased blood flow
  • light headedness

This is not a complete list of Caverject side effects. Ask your doctor or pharmacist for more information.

Tell your doctor if you have any side effect that bothers you or that does not go away.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.