system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Therapeutic drug monitoring is essential for the following drug?
assistant
The correct answer is  TDM is required for drugs with narrow therapeutic range like1. Immunosuppressants like cyclosporin and tacrolimus,2. Lithium,3. Antiepileptic drugs like phenytoin, Phenobarbitone, Carbamazepine etc.Ref: KD Tripathi 7th ed.Pg 34