Drug interactions
Alprostadil intracavernous / urethral + Heparin
Severity: Minor
Alprostadil intracavernous / urethral and Heparin: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Alprostadil inhibits platelet aggregation, but with intracavernosal or urethral use systemic exposure is low. Heparin may increase bleeding at the injection site, such as penile bruising or bleeding.
What this interaction means in plain words
Alprostadil intracavernous / urethral and Heparin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Prostaglandin E1-mediated platelet inhibition and vasodilation with heparin anticoagulation, mostly local effect.
What to do
Counsel patients on holding pressure after injection to limit local bleeding. No dose change is needed.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Heparin
- Acemetacin + Heparin Major
- Acetylsalicylic acid + Heparin Major
- Alteplase + Heparin Major
Frequently asked questions
Can I take Alprostadil intracavernous / urethral with Heparin?
MediHelp rates the interaction as minor. Alprostadil intracavernous / urethral and Heparin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Alprostadil inhibits platelet aggregation, but with intracavernosal or urethral use systemic exposure is low. Heparin may increase bleeding at the injection site, such as penile bruising or bleeding.
How serious is the interaction between Alprostadil intracavernous / urethral and Heparin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients on holding pressure after injection to limit local bleeding. No dose change is needed.
What other medicines interact with Heparin?
MediHelp also lists interactions of Heparin with, for example, Acemetacin, Acetylsalicylic acid, Alteplase. The full list is on the Heparin page.
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