Medication Interactions

Talk to your doctor and pharmacist about all of the medications you take. These include prescribed and OTC medicines and dietary supplements (vitamins, minerals, herbal products). Heed warnings on labels, too.


Drug-drug interactions

These can make a drug work less, increase the action of a drug, or cause side effects, even harmful ones. For example, unless told to by a doctor, do not take an antihistamine if you take medicine for high blood pressure or a sedative or tranquilizer.

Drug-condition interactions

Some medical conditions make taking certain drugs harmful. One example is taking a nasal decongestant if you have high blood pressure.

Drug and food/beverage interactions

Alcohol should not be mixed with certain drugs. Grapefruit juice should not be taken with certain medicines for high blood pressure and high blood cholesterol.

This website is not meant to substitute for expert medical advice or treatment. Follow your doctor’s or health care provider’s advice if it differs from what is given in this guide.


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