Alcohol can make you more dizzy. Avoid alcoholic drinks. If you are going to have surgery, tell your doctor or dentist that you are taking captopril. Avoid salt substitutes or other foods or substances high in potassium salts. Do not treat yourself for coughs, colds, or pain while you are taking captopril without asking your doctor or pharmacist for advice.
Antacid can stop captopril working.
If you want to take antacid for an upset stomach, make sure there is an interval of at least 2 hours since you last took captopril, or 4 hours before your next dose. Captopril can alter certain lab test results, giving a false-positive for urine ketone tests. Check with your doctor before changing the dose of your diabetic medicine. Keep out of the reach of children in a container that small children cannot open. Protect from moisture.