Capoten Drug Interactions When medicines such as potassium supplements or aspirin are taken together with Capoten, problems can occur. Interactions with Capoten may potentially cause a significant decrease in blood pressure, increased drug levels in your blood, or increased risk for infections. Comprehensive alcohol & food interactions for Capoten (captopril). Drugs.com provides accurate and independent information on more than 24,000 prescription drugs, over-the-counter medicines and natural products. Captopril is the generic name for the medicine Capoten, which is used to treat high blood pressure. The drug is also given to improve odds of survival after a heart attack, to help heart failure. Moderate Food Interaction It is recommended that if you are taking captopril you should be advised to avoid moderately high or high potassium dietary intake. This can cause high levels of potassium in your blood. Consumer information about the medication CAPTOPRIL - ORAL (Capoten), includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug CAPTOPRIL - ORAL. How do I know if caffeine is in my food or drinks? Check the labels on your foods and drinks to see if they have caffeine. Some foods and drinks with caffeine are coffee, cola foods, nutrients, supplements, or other drugs, which may produce unexpected side-effects or cause additional health problems. Effects of Food on Drug Intake Drug Absorption: Food or nutrients in the stomach or intestine may act to reduce the absorption of a drug by delaying digestion, binding to minerals found in the food, or adhering to food particles. In other cases, the food may promote. DESCRIPTION. CAPOTEN® (captopril tablets, USP) is a specific competitive inhibitor of angiotensin I-converting enzyme (ACE), the enzyme responsible for the conversion of angiotensin I to angiotensin II. Captopril can cause injury or death to the unborn baby if you take the medicine during your second or third trimester. Captopril can pass into breast milk and may harm a nursing baby. You should not breast-feed while you are using captopril. How to use Capoten Tablet. Take this medication by mouth on an empty stomach (at least 1 hour before meals) as directed by your doctor, usually two to three times a day.