Pharmacovigilance and Drug Safety

Adverse drug reactions

Adverse drug reactions can be considered a form of toxicity .toxicity is most commonly applied to effects of over absorption. For information on toxicity of specific drugs see the table Symptoms and Treatment of Specific Toxins. Adverse drug reactions are usually classified as mild, moderate, lethal (see table Classification of Adverse Drug Reactions [ADRs]. Severe or lethal ADRs may be specifically mentioned in black box notices in the physician prescribing information provided by the manufacturer.