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 required in all except:
assistant
The correct answer is  Ans. (B) Metformin(Ref: KDT 8th/e p42)* We can easily monitor blood glucose levels as an effect of metformin, thus TDM is not required.* TDM is required for lithium, digitalis, phenytoin, immunosuppressants and anti-arrhythmics, etc.