Adverse drug effects (ADEs) are defined as any harmful or unexpected reaction to a medication. While most drugs are well tolerated and cause few, if any, side effects, some people may experience serious ADEs. ADEs can range from mild reactions, such as a headache or upset stomach, to more severe reactions, such as anaphylaxis or pulmonary edema.
In some cases, ADEs may even be life-threatening. Healthcare providers need to be aware of the potential for ADEs in order to recognize them early and provide appropriate treatment. Adverse drug effect monitoring is an important part of ensuring patient safety and providing quality healthcare.