Drug interactions occur when medications are taken together. Some interactions are wanted; others are undesirable and even life-threatening. Give two reasons for giving medications together, and cite two types of dangerous drug interactions.

Reason for giving medication together

1.) They reduce development of drug resistance since a pathogen or tumor is less likely to have resistance to multiple drugs simultaneously

2.) It has a lower treatment failure rate

Dangerous drug interactions include;

1.) Statins (3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors) are widely prescribed, and widely recognized to carry a high risk for drug/drug interactions

2.) Coadministration of clarithromycin with vasodilating calcium-channel blockers, such as amlodipine and felodipine, can cause hypotension and acute renal failure.