Which medication is commonly used to prevent thrombosis?

Dipyridamole is an antiplatelet medication that is primarily used to prevent thrombus (blood clot) formation. It works by inhibiting platelet aggregation, thereby reducing the likelihood of clots forming within blood vessels. This makes it particularly beneficial in preventing strokes, especially in patients who have experienced transient ischemic attacks or have certain types of heart conditions.

In contrast, insulin and metformin are primarily used for the management of diabetes, with insulin being important for controlling blood glucose levels and metformin improving insulin sensitivity and glucose utilization. Amoxicillin, an antibiotic, is used to treat bacterial infections and does not have a role in thrombosis prevention. Hence, the use of dipyridamole specifically addresses the need for antithrombotic therapy, making it the only relevant choice among the options provided for preventing thrombosis.