An adverse reaction is an undesirable side effect
due to the use of a medication. Adverse reactions may include symptoms, such as muscle pain or nausea; changes in laboratory tests, such as abnormal liver function tests; and, changes in other measures of your body’s function, such as your pulse, blood pressure and electrocardiogram (ECG).
Also Known As: side effect
An adverse reaction to some statin drugs (such as Lipitor, used to treat high cholesterol
) is muscle pain. An adverse reaction to some antidepressant medication (such as Zoloft, used to treat depression
) is erectile dysfunction