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 an implant in your penis
• If you have been told to avoid sexual activity for medical reasons
• If you have a scarred or unstraight penis
• If you have a tight foreskin

A full list of reasons to avoid taking Caverject can be found on the medical leaflet, with full details. Caverject should not be taken by women.

Caverject is an injection directly injected into the penis to help assist erectile dysfunction and impotence. You should always take the medicine exactly as instructed to do so by the information leaflet or as the doctor/nurse informs you to. It should not be used more than once within 24 hours and you should alternate which side of the penis you inject into each time. It does take a little while for an erection to occur after the injection and 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 could mean the possible common symptoms may occur:

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

The following side effects are less common but can be found after use of the Caverject injection:

• The area injected becomes irritated, inflamed or swollen
• The testes or scrotum becomes red, swollen, painful and possibly develop lumps
• Uncomfortable and painful prolonged erections or none at all
• A stronger desire to pass urine 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 is located in the medical leafle

Take a look at the following FAQ's for this product:

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 and a separate diluent that needs to be mixed before use, while Caverject Dual Chamber is a prefilled dual-chamber syringe system, which simplifies 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, yes. However, you must consult your doctor (or us) if you are looking to do 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, then please get in touch with us.

Does Caverject also 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 you miss a dose, you should use it as soon as you remember. However, never use a double dose to make up for a missed one.