About dipyridamole
Antiplatelet and vasodilator
Used for
- Prevention of blood clots after certain heart valve replacements, usually with an anticoagulant.
- Sometimes used with aspirin to prevent stroke or transient ischaemic attack.
Usual adult dose
Heart valve replacement: usually 300–400 mg daily in divided doses. Stroke prevention: dosing varies by formulation and local guidance.
Common side effects
- Headache
- Dizziness
- Nausea or diarrhoea
- Flushing
Important warnings
- May increase bleeding risk, especially with anticoagulants or aspirin.
- Can lower blood pressure and worsen chest pain in some people.
- Tell clinicians before tests involving adenosine or dipyridamole.
- Do not stop prescribed treatment without medical guidance.
Pregnancy
Use only when a clinician considers it necessary; pregnancy information is limited.
Breastfeeding
Use only after discussing benefits and risks with a clinician; information is limited.
Interactions
- Anticoagulants and antiplatelet medicines can increase bleeding.
- Adenosine effects may be increased.
- Theophylline and other xanthines may reduce dipyridamole effects.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.