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Home >Information for Patients > Dictionary Index

Dictionary of Cancer Terms

View in Spanish: Interacción de medicamentos

Drug interaction (… IN-ter-AK-shun)
A change in the way a drug acts in the body when taken with certain other drugs, herbals, or foods, or when taken with certain medical conditions. Drug interactions may cause the drug to be more or less effective, or cause effects on the body that are not expected.



 
 
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.