Which of the following drugs is not metabolized by acetylation?

1. Dapsone
2. PAS
3. Clonazepam
4. lorazepam

answer: 4. lorazepam

ref; KDT P: 24

Drugs undergoing acetylation:

 cool SHIP

cool- clonazepam 

S- Sulfonamide, Dapsone, PAS,

H-Hydralazine

I- Isoniazid

P-Procainamide

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