Clopidogrel is generally contraindicated in the elderly with gastric problems. Clopidogrel is a kind of platelet antagonist used to inhibit platelet aggregation. The health condition of body organs of the elderly is already weak, plus the existence of gastric disease, after taking clopidogrel, it is easy to cause excessive antiplatelet aggregation or cause gastric hemorrhage and so on, which is a dangerous thing for the elderly who are using the drug. Therefore, it is generally believed that clopidogrel should not be given to elderly people with gastric problems, but if necessary, it should be evaluated by a physician and given as a prophylactic oral proton pump inhibitor such as pantoprazole. Clopidogrel may cause bleeding, rash, hepatitis, and other adverse reactions, allergies, peptic ulcer, severe liver injury is contraindicated, and should be aware of possible interactions with drugs such as Favalin or aspirin. Consult your physician before use.