Low molecular heparin cannot replace aspirin. Low molecular heparin belongs to the class of anticoagulant drugs, aspirin belongs to the class of antiplatelet drugs – cyclooxygenase inhibitors, the two drugs have different mechanisms of action.
In medicine, the formation of thrombus can be categorized into two types, one is due to various reasons for the formation of stagnant blood flow, slow blood flow and other induced thrombosis, which is mostly seen in atrial fibrillation, long-term bedridden or passive braking of the population.
Another type of thrombus is formed when the endothelium of the blood vessel is damaged, resulting in platelet aggregation and adhesion, which is most common in the arteries. The first group is usually prevented and treated with anticoagulant drugs, while the second group can be treated with antiplatelet aggregating drugs.
Although both anticoagulants, represented by low molecular heparin, and antiplatelet agents, represented by aspirin, can be used in antithrombotic therapy, they are generally not substitutes for therapy because of their different mechanisms of action and different scenarios of actual use. Both drugs carry a certain risk of bleeding, and patients are advised to use them under the guidance of a physician to avoid an adverse prognosis.