Caverject (Alprostadil) Injection

You should avoid using Caverject if you experience any of the following:

• If you are allergic to alprostadil
• If you have sickle cell anaemia
• If you have leukaemia
• If you have multiple myeloma
• If you have a penile implant
• If you have been advised to avoid sexual activity for medical reasons
• If you have a scarred or curved penis
• If you have a tight foreskin

A complete list of reasons to avoid taking Caverject can be found in the medical leaflet with full details. Caverject should not be used by women.

Caverject is an injection administered directly into the penis to help treat erectile dysfunction and impotence. Always use the medicine exactly as directed by the information leaflet or as advised by your doctor or nurse. It should not be used more than once within 24 hours, and you should alternate the side of the penis you inject each time. It may take a little while for an erection to occur after the injection, and it should last no longer than an hour.

Each ml of Caverject contains 20.5 mcg or 41.1 mcg of alprostadil depending on vial strength, 172 mg of lactose, 47 mcg of sodium citrate and 8.4 mg of benzyl alcohol.

Using Caverject may cause some common symptoms, including:

• Pain in the penis
• Bruising, possible scarring, and/or a bent appearance of the penis
• Prolonged erections
• Swelling and discolouration of the skin
• Muscle spasms

Less common side effects that may occur after using the Caverject injection include:

• Irritation, inflammation, or swelling at the injection site
• Redness, swelling, pain, and possible lumps in the testes or scrotum
• Uncomfortable and painful prolonged erections or none at all
• A stronger urge to urinate more urgently or frequently than normal
• Pelvic pain
• Weakness
• Sweating
• Nausea
• Swollen legs or arms
• Changes in blood pressure or heart rhythm
• Faintness/dizziness
• Skin irritation and redness
• Eye sensitivity

A full and detailed list of all possible side effects can be found in the medical leaflet.

What is the difference between Caverject and Caverject Dual Chamber?

Both contain the active ingredient alprostadil, but they differ in their formulation and packaging. The original Caverject comes as a powder with a separate diluent that needs mixing before use, while Caverject Dual Chamber is a prefilled dual-chamber syringe system, simplifying the preparation process.

Are the administration methods of Caverject and Caverject Dual Chamber the same?

Yes, both versions are injected directly into the penis following the specific instructions provided by your healthcare provider. However, the preparation process may differ between the two.

Can I switch between Caverject and Caverject Dual Chamber without consulting a doctor?

You can switch between the two, but you must consult your doctor (or us) if you are considering doing so. While both versions contain the same active ingredient, they may have different preparations, which could require a change in your injection procedure or dosage. If you are unsure, please get in touch with us.

Does Caverject have the same side effects as Caverject Dual Chamber?

Yes, since both Caverject and Caverject Dual Chamber contain the same active ingredient, alprostadil, the potential side effects are similar. These can include penile pain, prolonged erections, or in rare cases, priapism.

What should I do if I miss a dose of Caverject?

Caverject is typically used as needed, so you're unlikely to be on a dosing schedule. If you’re advised to use it regularly and miss a dose, use it as soon as you remember. However, never use a double dose to make up for a missed one. Remember, it is crucial to consult a healthcare professional for advice and guidance regarding the use of Caverject Injection 10mcg or 20mcg, or any other medication. As always, if side effects concern you or you need more information, please get in touch with us.