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The Merck Manual--Second Home Edition logo
 
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Chapter 13. Factors Affecting Response to Drugs
Topics: Introduction | Genetic Makeup | Drug-Drug Interactions | Dietary Supplement-Drug Interactions | Drug-Food Interactions | Drug-Disease Interactions | Tolerance and Resistance
 
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Drug-Food Interactions

Drug-food interactions are changes in a drug's effects caused by food (including beverages) consumed during the same time period.

Like food, drugs taken by mouth must be absorbed through the lining of the stomach or the small intestine. Consequently, the presence of food in the digestive tract may reduce absorption of a drug. Often, such interactions can be avoided by taking the drug 1 hour before or 2 hours after eating.

click here to view the table See the table Some Drug-Food Interactions.

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