Pfizer Caverject Alprostadil 20mcg Injection

Rx
Brand Pfizer
  • FDA Approved
  • Fast Delivery
  • Discreet Packaging
  • Secure Payment

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Dr. Mohd Izzat Amir Bin Awang
Reviewed byDr. Mohd Izzat Amir Bin AwangDoctor of Medicine (MD), University of Mansoura - Manchester
Dr. Chong Zhan Pong
Written byDr. Chong Zhan PongDoctor of Medicine (MD), International Medical University (IMU)

Last updated:

Overview

Pfizer Caverject Alprostadil 20mcg Injection is a prescription-only medicine (POM) that contains Alprostadil 20mcg (as a lyophilised powder for reconstitution before injection). It is supplied as an injection and is dispensed in Malaysia only against a valid prescription issued by a registered doctor.

Under Malaysian rules for prescription medicines, this page carries product, safety and handling information only. Your doctor or pharmacist will explain whether this medicine is suitable for you, the dose you should take, and how long you should take it.

On DoctorOnCall, Pfizer Caverject Alprostadil 20mcg Injection is reviewed by a licensed doctor through an online consultation and dispensed by a registered pharmacist before delivery. Always follow the instructions on your prescription label and the package insert supplied with the product, and do not share this medicine with anyone else.

Directions for Use

This injection must only be administered as taught by your doctor or pharmacist. The lyophilised powder is reconstituted with the accompanying diluent immediately before use, then injected into the side of the penis (intracavernosal injection) using a fine needle. Injection sites should be rotated to reduce the risk of localised scarring (fibrosis). Do not use more than the dose and frequency your doctor has prescribed.

Dosage

The dose is individualised by your doctor, usually starting with a low test dose that is adjusted based on your response, up to a maximum recommended frequency (commonly no more than once daily and limited to a few times a week, as advised by your doctor). Never adjust your own dose or use it more often than prescribed, as this increases the risk of a prolonged erection (priapism).

Shelf Life

Use this product before the expiry date stated on the packaging. Do not use the medicine if the expiry date has passed. Once reconstituted, it should be used immediately and not stored for later use unless your pharmacist specifically advises otherwise.

Storage Instructions

Store in a refrigerator (2-8°C). Do not freeze. Once reconstituted, use immediately as directed by your pharmacist or doctor. Keep out of reach of children.

Side Effects

  • Local pain or discomfort at the injection site
  • Redness, swelling, or bruising at the injection site
  • Dizziness or light-headedness
  • Fibrosis (thickening/scarring of penile tissue) with long-term use if injection sites are not rotated
  • Serious: a prolonged erection lasting more than 4 hours (priapism) is a medical emergency – seek urgent medical attention immediately

Contraindications

  • Known hypersensitivity/allergy to alprostadil or any component of the formulation
  • Conditions predisposing to priapism, such as sickle cell anaemia/trait, multiple myeloma, or leukaemia
  • Anatomical deformation of the penis (e.g. angulation, cavernosal fibrosis, Peyronie’s disease) or penile implants
  • Men who have been advised against sexual activity due to underlying cardiovascular risk

Drug / Food Interactions

  • No significant food interactions have been established with this medication
  • Using it together with other erectile dysfunction treatments or vasoactive agents may increase the risk of prolonged erection or priapism
  • Certain blood pressure medicines may enhance its effects or increase the risk of side effects
  • Always inform your doctor or pharmacist about any other medications or supplements you are taking

Quick Tips

  • Only use this product after receiving hands-on instruction from your healthcare provider
  • Rotate injection sites to minimise localised side effects
  • Keep track of the dose and frequency used – never exceed what your doctor has prescribed
  • Seek urgent medical attention if an erection lasts longer than 4 hours
  • Dispose of used needles and syringes safely, as directed by your pharmacist
  • Do not share this medicine with anyone else, even if their symptoms seem similar

Ingredients / Active Ingredients

  • Alprostadil 20mcg (as a lyophilised powder for reconstitution before injection)

Frequently Asked Questions

Product Specifications

BrandPfizer
ClassificationPrescription medicine
Pack Size1s

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