Adverse Drug Reactions Classifcations: Based on Severity

a)Mild : No antidote or treatment is required; hospitalization is not prolonged

b)Moderate: A change in treatment (e.g., modified dosage, addition of a drug), but not necessarily discontinuation of the drug, is required; hospitalization may be prolonged, or specific treatment may be required

c)Severe: An ADR is potentially life threatening and requires discontinuation of the drug and specific treatment of the ADR

d)Lethal : An ADR directly or indirectly contributes to a patient's death