What is the dosing frequency for Aggrenox?

Aggrenox is a medication that combines aspirin and dipyridamole, primarily used to reduce the risk of stroke in individuals who have had transient ischemic attacks or a stroke. The therapeutic effect of Aggrenox is achieved through its dual action: aspirin acts as an antiplatelet agent, while dipyridamole enhances blood flow by inhibiting platelet aggregation.

The recommended dosing frequency for Aggrenox is twice daily (BID). This twice-daily regimen helps maintain adequate levels of the drug in the system throughout the day, ensuring continuous protection against the risk of stroke due to its antithrombotic properties. This is especially important because effective stroke prevention involves maintaining a steady level of anticoagulant activity.

Lower frequency dosing, like once daily, would not provide the same level of consistent therapeutic effect, while a higher frequency such as three times daily (TID) or four times daily (QID) may lead to increased side effects or patient non-compliance, as more frequent dosing can be cumbersome and less likely to be followed by patients. Thus, the BID regimen strikes an effective balance between efficacy and ease of adherence.