Active Ingredient

Alprostadil

Alprostadil is a medication used to improve blood flow in certain medical conditions. It is commonly used for its vasodilating properties, which means it helps widen blood vessels.

This ingredient is often prescribed for conditions where enhanced blood circulation is beneficial.

Written By Douglas C. Goldberg, MD

Reviewed By Philip Schein, MD

Last Updated 28 Nov 2025

Available Alprostadil Brands

Alprostadil

Strengths 500mcg

Alprostadil Uses

Alprostadil is used in various medical situations to facilitate better blood flow. Some common uses include:

Treatment of erectile dysfunction.
Management of certain heart conditions in newborns.
Improving blood flow in patients with peripheral vascular disease.
Assisting in diagnostic procedures for erectile dysfunction.

How Alprostadil Works

Alprostadil works by relaxing the smooth muscles in blood vessel walls. This relaxation allows blood vessels to widen, improving blood flow to specific areas of the body.

As a vasodilator, it acts on the smooth muscle cells to help increase circulation where needed.

This effect can be particularly beneficial in treating erectile dysfunction by enhancing blood flow to the penis.

Common side effects of Alprostadil

Not everyone experiences side effects from Alprostadil, and many effects are mild and temporary. Common side effects may include:

Headache
Dizziness
Penile pain
Redness or warmth at the injection site
Low blood pressure
Back pain
Swelling in the legs or feet

If you experience serious or persistent symptoms, contact your healthcare provider.

Monitor for any unusual symptoms and report them to your doctor.
Avoid consuming large amounts of alcohol while using this medication.
Discuss any other medications you are taking with your healthcare provider to avoid interactions.
Do not use Alprostadil if you experience sudden changes in vision or hearing.
Inform your doctor if you have a history of heart disease or low blood pressure.

Always consult your doctor for personalized medical advice.

Frequently Asked Questions

How long does it take for Alprostadil to work?

The onset of action can vary, but it generally works within a few minutes when used for erectile dysfunction.

How long do the effects of Alprostadil last?

The effects can last for a few hours, but this can vary depending on individual response and the condition being treated.

Is Alprostadil safe for everyone?

Alprostadil is not suitable for everyone. It should be used under the guidance of a healthcare professional, especially if you have certain medical conditions.

Can Alprostadil interact with other medications?

Yes, it can interact with other medications. It’s important to inform your doctor about all the medications you are taking.

Can I use Alprostadil with alcohol?

It’s advisable to limit alcohol consumption while using Alprostadil, as it can increase the risk of side effects.