Idiosyncratic reaction of a drug is:
a) A type of hypersensitivity reaction
b) A type of drug antagonism
c) Unpredictable, inherent, qualitatively abnormal reaction to a drug
d) Quantitatively exaggerated response
Unpredictable, inherent, qualitatively abnormal reaction to a drug.Drug reactions that are idiosyncratic or type B reactions are uncommon and unpredictable in the general population.