Clopidigrel won't cause anemia. 7.8 mg/dl is very low for any age group. Need transfusion or supplements. Get treated for anemia as 70 yrs age group, tend to get cardiac related problems with severe anemia.
Next Steps
consult to get evaluation of cause of anemia. need lab investigation
Health Tips
try to eat green leafy veg,
liver, bright coloured fruits,try to use supplement with fasting or empty stock with orange juice or vit c supplement for better absorption.