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Caverject Impulse (Alprostadil)

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Caverject Impulse Injection (Alprostadil) - 10mcg (Prefilled Syringe) Caverject Impulse Injection (Alprostadil) - 10mcg (Prefilled Syringe)


Caverject Impulse Injection (Alprostadil) - 20mcg (Prefilled Syringe) Caverject Impulse Injection (Alprostadil) - 20mcg (Prefilled Syringe)


Active Ingredient



Pfizer Inc.


New Zealand

Other Names



Physician Prescribing Information (PDF)

What is Caverject Impulse (Alprostadil) used for?

Caverject Impulse (Alprostadil) is used in the treatment of male erectile dysfunction, and is also sometimes used together with other tests to help diagnose causes of this condition. This medication belongs to a class of drugs known as vasodilators, which work by helping the blood vessels and muscles in the penis to relax, thereby helping to increase blood flow into the penis and causing an erection.

How should I use Caverject Impulse (Alprostadil)?

Caverject Impulse (Alprostadil) is administered by directly injecting it into the penis. In order to determine the correct dose, patients should consult their physician. Your physician will determine the correct dose at his or her office, and will also give instructions on how to properly inject it. Patients should expect to notice an erection 5 to 20 minutes after administering the injection, and the erection should usually last no longer than 1 hour. Patients should not use this medication more than 3 times per week, with at least a 24 hour interval between each usage.

What are the side effects of Caverject Impulse (Alprostadil)?

Caverject Impulse (Alprostadil) may cause some side effects, such as:

  • Penile pain
  • Unusual discharge from the penis
  • Itching, numbness or warmth of the penis
  • Back pain
  • Cold or flu symptoms

Patients should consult their physician if any of these side effects become bothersome, or if other side effects occur, such as ecchymosis or hematoma at the injection site, difficulty urinating, bloody urine, severe, persistent pain of the urethra or penis, feelings of lightheadedness or a painful erection lasting more than 4 hours.

Please Note

Strictly follow all instructions provided to you by your physician or pharmacist while using Caverject Impulse (Alprostadil). Optimum and safe dosage can differ based on the patient and the condition being treated.

As this medication may be unsafe for certain patients, it is essential you always inform your physician if you are pregnant or breastfeeding, as well as if you have any allergies, other illnesses, or ongoing health conditions, and if you are taking any other form of medication, supplements, or herbal products.

This medication is only used to treat male patients for erectile dysfunction. It is not normally prescribed to female patients. Women who are pregnant or breastfeeding should never take this medication and take care to avoid contact with it.

Immediately seek emergency medical care if you have any allergic or hypersensitive reaction. Common signs of a reaction include hives, swelling, skin rashes, chest pains, as well as trouble breathing or swallowing.

Caverject Impulse (Alprostadil)
Caverject Impulse Injection
Caverject Impulse Injection (Alprostadil)
Caverject Impulse Injection (Alprostadil) - 20mcg
Caverject Impulse Injection - 20mcg
Caverject Impulse Injection (Alprostadil) - 20mcg (Prefilled Syringe)