Thromboembolic disorders:

Indications for Aspirin/Dipyridamole:

To reduce the risk of stroke in patients who have had transient ischemia of the brain or completed ischemic stroke due to thrombosis.


Swallow whole. 1 cap twice daily, one in the morning and one in the evening. Alternative regimen in case of intolerable headaches: switch to 1 cap at bedtime and low-dose aspirin in AM; return to usual regimen as soon as possible, usually within 1 week.


Not recommended.


NSAID allergy. Patients with the syndrome of asthma, rhinitis, and nasal polyps. Viral infection in children/teens (risk of Reye syndrome).


Not interchangeable with individual components of aspirin and dipyridamole. Increased risk of bleeding, including GI bleed. History of active peptic ulcer, severe hepatic or renal dysfunction; avoid. Coronary artery disease. Pre-existing hypotension. Chronic, heavy alcohol use. Labor & delivery. Pregnancy. Nursing mothers.

Pharmacologic Class:

Combination antiplatelet.


Increased risk of bleeding with anticoagulants, antiplatelets, heparin, anagrelide, fibrinolytic therapy, alcohol, chronic NSAID use. Potentiates adenosine, acetazolamide, methotrexate, oral hypoglycemics. May antagonize ACE inhibitors, β-blockers, diuretics, cholinesterase inhibitors, uricosurics. May increase risk of renal dysfunction with NSAIDs. Monitor phenytoin, valproic acid, other anticonvulsants.

Adverse Reactions:

Headache, dyspepsia, abdominal pain, nausea, diarrhea; bleeding risk, increased liver enzymes, hepatic failure.


Formerly known under the brand name Aggrenox.

How Supplied:

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