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Drug Interactions
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Caregivers' Guide to Medications and Aging 
For older adults and people with disabilities, medications—prescription, over-the-counter, social drugs such as alcohol, and herbal remedies/alternative medicines—can be a double-edged sword. When not... Details >
Drug Interactions
Also available in: Spanish
If you take several different medicines, see more than one doctor, or have certain health conditions, you and your doctors need to be aware of all the medicines you take. ... Details >
Drug Interactions: What You Should Know
Some drugs have adverse affects if taken together. Learn more about protecting yourself and your family from drug and common food interactions.... Details >
Federal Citizen Information Center, U.S. General Services Administration
DrugDigest
An online resource where users can learn more about drugs, dietary supplements and drug interactions; find out how the drug they are taking compares with others like it; and get information about the ... Details >
Commercial Entity--Follow the Resource URL for More Information
Grapefruit Juice General Information
Despite popular belief, most prescription drugs do not show a clinically relevant interaction with grapefruit juice.... Details >
Educational Institution--Follow the Resource URL for More Information
Harmful Interactions: Mixing Alcohol with Medicine
Also available in: Spanish
You’ve probably seen this warning on medicines you’ve taken. The danger is real. Mixing alcohol with certain medications can cause nausea and vomiting; headaches; drowsiness; fainting; loss of coordin... Details >
National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health