NZ Formulary



What does it do?

Dipyridamole is used to prevent clots forming in your blood. It reduces your risk of having a stroke.

How should you take it?

Take dipyridamole regularly as directed with a glass of water.
Swallow the slow release tablets whole.

What if you forget a dose?

Take the missed dose as soon as possible. If it is close to the time for your next dose, skip the missed dose and carry on as normal. Do not take two doses at the same time.

Can you take other medicines?

Some medicines available without a prescription may react with dipyridamole including:

  • antacids (e.g. Mylanta®)
  • ranitidine (e.g. Zantac®)
  • omeprazole (e.g. Losec®)

Tell your pharmacist or doctor about all medicines or treatments that you may be taking, including vitamins, herbal products (e.g. ginkgo) or recreational drugs.

What side effects might you notice?

Side EffectsRecommended action


Change in heartbeat, chest pain

Tell your doctor


Stomach upset

Muscle aches and pains


Tell your doctor if troublesome

If you notice any other effects, discuss them with your doctor or pharmacist.

Important information continues on next page.

Other information:

  • Tell your doctor if you have heart problems (such as angina) or liver problems, or a chronic muscle condition (e.g. myasthenia gravis).
  • Tell your doctor if you are pregnant, planning to become pregnant, or breastfeeding.
  • It is important to tell anyone who gives you medical or dental treatment that you are taking dipyridamole.
  • Do not take indigestion remedies within 2 hours of dipyridamole.