Drug interaction is defined as an interaction between a drug and another substance that prevents the drug from performing expected effects, the outcome of which can be synergistic, antagonistic, or idiosyncratic. So the effects of drug interactions can be beneficial or harmful. This definition includes- drug-drug interactions, drug-food interactions and interactions between drugs and other substances. Important drug interactions are listed below.

Drugs starting with A-drug interactions

Drugs starting with B-drug interactions

Drugs starting with C-drug interactions

Drugs starting with D-drug interactions

Drugs starting with E-drug interactions

Drugs starting with F-drug interactions

Drugs starting with H-drug interactions

Drugs starting with I-drug interactions

Drugs starting with L-drug interactions

Drugs starting with M-drug interactions

Drugs starting with N-drug interactions

Drugs starting with O-drug interactions

Drugs starting with P-drug interactions

Drugs starting with Q-drug interactions

Drugs starting with S-drug interactions

Drugs starting with T-drug interactions

Drugs starting with W-drug interactions