Therapeutic Drug Level Monitoring Carbamazepine - Sample immediately before next dose (trough) Clozapine - Sample immediately before next dose (trough) or at anytime if toxicity suspected Cyclosporin - Sample immediately before next dose (C0) or exactly 2 hours post dose (C2) Digoxin - Sample 8-24 hours post dose Gentamicin - Sample trough level 2-4 hours before next dose is due Lithium - Sample 12 hours post dose Phenobarbitone - Sample immediately before next dose (trough) Phenytoin - Sample at least 12 hours post dose (trough) Theophylline - For i/v infusion, sample at any time Tobramycin - Trough: immediately before next dose - Peak: 30 mins post dose Vancomycin - Intermittent dosing: sample immediately before 4th dose - Continuous infusion: sample after 18 hours duration #DrugLevels #Therapeutic #Ranges #Toxicology #Pharmacology #Diagnosis #Table #Monitoring #Timing
