Caverject Impulse (Alprostadil Dual Chamber System for Injection) Drug Information: Description, User Reviews, Drug Side Effects, Interactions

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May 26, 2012

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Caverject Impulse

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CAVERJECT IMPULSE
Dual Chamber System
(alprostadil) for Injection

For Intracavernosal Use

DRUG DESCRIPTION

CAVERJECT contains alprostadil as the naturally occurring form of prostaglandin E₁ (PGE₁) and is designated chemically as (11α ,13E,15S)-11,15-dihydroxy-9-oxoprost-13-en-1-oic acid. The molecular weight is 354.49.

Alprostadil is a white to off-white crystalline powder with a melting point between 115° and 116°C. Its solubility at 35°C is 8000 micrograms (mcg) per 100 milliliter double distilled water.

The structural formula of alprostadil is represented below:

Caverject (alprostadil) structural formula illustration

CAVERJECT IMPULSE (alprostadil dual chamber system for injection) is available as a disposable, single-dose, dual chamber syringe system. The system includes a glass cartridge which contains sterile, freeze-dried alprostadil in the front chamber and sterile bacteriostatic water for injection in the rear chamber. The alprostadil is reconstituted with the sterile bacteriostatic water just before injection. CAVERJECT IMPULSE (alprostadil dual chamber system for injection) is available in two strengths for intracavernosal administration:

10 microgram - The reconstituted solution has a volume of 0.64 mL. The delivered volume, 0.5 mL, contains 10 micrograms (mcg) of alprostadil, 324.7 mcg of alpha cyclodextrin, 45.4 mg of lactose, 23.5 mcg of sodium citrate, and 4.45 mg of benzyl alcohol.

20 microgram - The reconstituted solution has a volume of 0.64 mL. The delivered volume, 0.5 mL, contains 20 micrograms (mcg) of alprostadil, 649.3 mcg of alpha cyclodextrin, 45.4 mg of lactose, 23.5 mcg of sodium citrate, and 4.45 mg of benzyl alcohol.

When necessary, the pH of the alprostadil for injection was adjusted with hydrochloric acid and/or sodium hydroxide before lyophilization.

What are the possible side effects of alprostadil (Caverject, Caverject Impulse, Edex, Muse, Prostin VR Pediatric)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Stop using alprostadil and call your doctor at once if you have any of these serious side effects:

feeling light-headed, fainting;
bleeding from your urethra;
bleeding, bruising, or swelling where you injected the medication;
a painful erection that lasts 4 hours or longer;

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What are the precautions when taking alprostadil dual chamber system for injection (Caverject Impulse)?

Before using alprostadil, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: penis conditions (e.g., angulation, fibrosis/scarring, Peyronie's disease), blood system cancers (e.g., leukemia, multiple myeloma), sickle cell anemia.

Use of this drug does not protect against sexually transmitted diseases (e.g., HIV, hepatitis B, gonorrhea, syphilis). To decrease your risk of infection, always use an effective barrier method such as a latex or polyurethane condom during all sexual activity. Consult...

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Last reviewed on RxList: 3/5/2008
This monograph has been modified to include the generic and brand name in many instances.