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Caverject is an injectable drug used to treat erectile dysfunction in men. It works by allowing blood vessels to open, which makes it possible for some men to achieve and maintain an erection.

Always follow your doctor’s instructions and use Caverject exactly as prescribed.

  • Your doctor will demonstrate how to use this drug.
  • Wash your hands and attach a new needle before each use.
  • Place used needles in a sharps container and dispose of the container at a local facility.
  • Do not use Caverject if the solution is cloudy, leaking, or changes color.
  • Use on an as-needed basis prior to sexual activity.


Before taking Caverject, inform your doctor if you have any of the following:

  • Polycythemia or thrombocythemia
  • Leukemia, multiple myeloma, sickle cell anemia
  • Penile problems or an implant

Side Effects

Common side effects of Caverject include:

  • Penile pain

Contact your doctor if you experience these more serious side effects:

  • Irritation at injection site
  • Shortness of breath
  • Severe headache
  • Dizziness or fainting
  • Lumps, swelling, tenderness or curving of the erection
  • Chest pain or fast heartbeat
  • Allergic reaction – rash, hives, wheezing, tightness in chest, trouble breathing or swallowing, swelling of face or throat


How long does Caverject take to work?

Caverject typically works 5 to 20 minutes after injection, and produces an erection that lasts about an hour.

Will Caverject work if I’ve already tried Viagra or Cialis?

Caverject is effective for many men with ED, even those who haven’t had success with medication like Viagra or Cialis.

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A valid Prescription is required to be mailed or faxed to complete this order. I acknowledge that I will need to be contacted to complete a health profile before my order is shipped.

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