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How to Inject CAVERJECT

The more you use CAVERJECT (alprostadil for injection) the easier it should become to use. In time, you’ll get into a routine. Just give yourself time to learn the steps.

What you should know before you use CAVERJECT:

  • Before you begin, get training from a healthcare provider on the proper use of CAVERJECT
  • Do not use CAVERJECT more than 3 times a week. Wait at least 24 hours (1 day) between doses
  • Do not change the dose without talking to your healthcare provider
  • Only take the recommended dose
  • Make sure your medicine is stored at room temperature (77°F/25°C)
  • Do not use any leftover CAVERJECT solution
  • Each needle should be used only once. Never reuse a needle, and never share a needle
  • Do not use other medical treatments for ED while you are using CAVERJECT

If you continue treatment with CAVERJECT, you should see your healthcare provider every 3 months. This routine visit is to make sure that everything is ok.



CAVERJECT is used to treat erectile dysfunction (ED) due to neurogenic, vasculogenic, psychogenic, or mixed etiology.


Important Safety Information

CAVERJECT should not be used in men hypersensitive to alprostadil, men with conditions that may predispose them to priapism (such as sickle cell anemia or trait, multiple myeloma or leukemia), men with anatomical deformities of the penis (such as angulation, cavernosal fibrosis or Peyronie’s disease), men with penile implants, or men for whom sexual activity is inadvisable or is contraindicated.

CAVERJECT should not be used in women, children or newborns.

Patients should be instructed to immediately report to his physician any erection lasting 4 hours or longer. If unavailable, patient must seek immediate medical assistance.

CAVERJECT can cause penile fibrosis or Peyronie’s disease.

Use of Caverject in patients who take anticoagulants, such as warfarin or heparin, should be with precaution as they may have increased tendency for bleeding after Caverject injections.

The most common side effect of CAVERJECT® (alprostadil for injection) was penile pain, reported by 37% of patients in clinical studies. Other side effects were prolonged erection, penile fibrosis and injection site hematoma. To lower the risk of prolonged erections or priapism, Caverject should be titrated slowly to the lowest effective dose.

For Full Prescribing and Patient Information for CAVERJECT®, please click here.