What are the types of drug interaction?

Types of drug interactions

• Drug-drug. A drug-drug reaction is when there’s an interaction between two or more prescription drugs.
• Drug-nonprescription treatment. This is a reaction between a drug and a nonprescription treatment.
• Drug-food.
• Drug-alcohol.
• Drug-disease.
• Drug-laboratory.

What is a drug-disease interaction?

Drug-disease interactions (DDSIs) are situations where the pharmacotherapy used to treat a disease causes worsening of another disease in a patient (Merck Manual Consumer Version). In these circumstances drugs should be avoided (i.e., are contra-indicated), adjusted or accompanied by extra monitoring.

What is the medical term for drug interaction?

Pharmacokinetic interactions. Modifications in the effect of a drug are caused by differences in the absorption, transport, distribution, metabolism or excretion of one or both of the drugs compared with the expected behavior of each drug when taken individually.

Why are drug interactions important?

Drug interactions can potentiate a medication’s effects, possibly triggering a response similar to that of an overdose, or reduce a medication’s effects, possibly to the point where the medication is entirely ineffective.

Why do drugs interact?

Most of the important drug interactions result from a change in the absorption, metabolism, or elimination of a drug. Drug interactions also may occur when two drugs that have similar (additive) effects or opposite (canceling) effects on the body are administered together.

What is pharmacodynamic drug interaction?

Pharmacodynamic drug-drug interactions (DDIs) occur when the pharmacological effect of one drug is altered by that of another drug in a combination regimen. DDIs often are classified as synergistic, additive, or antagonistic in nature, albeit these terms are frequently misused.

What causes pharmacodynamic drug interactions?

What is the best definition of interaction?

1 : the act of talking or doing things with other people Board games encourage interaction. 2 : the action or influence of things on one another interaction of the heart and lungs. interaction. noun.