Myocardial infarction with generalized weakness after taking blood-activating drugs may be caused by intolerance to the drugs and potassium deficiency. It is recommended to stop the drug immediately or supplement potassium, and seek medical attention in time. 1. Intolerance to blood-activating drugs: Taking blood-activating drugs can make the blood flow smoothly, but intolerance to blood-activating drugs will have side effects, which are manifested as dizziness of the head, bleeding of the gums, irregular menstruation, etc. It is recommended to stop taking the drugs immediately and observe whether the symptoms are relieved or not, and seek medical treatment immediately if they are not relieved. 2. Potassium supplementation: the weakness of the hind legs after taking blood-activating drugs may also be caused by potassium deficiency in the body, which is manifested by symptoms such as limb weakness, muscle pain, bradycardia, elevated blood pressure, etc. Potassium supplementation should be made in time to assist ECG examination. It is recommended to go to the regular hospital for diagnosis and treatment if the above situation occurs.