A List of Drugs with Their Normal Therapeutic Concentrations.

Amikacin: 15 to 25 mcg/mL
Aminophylline: 10 to 20 mcg/mL
Amitriptyline: 120 to 150 ng/mL
Carbamazepine: 5 to 12 mcg/mL
Cyclosporine: 100 to 400 ng/mL (12 hours after dose)
Desipramine: 150 to 300 ng/mL
Digoxin: 0.8 to 2.0 ng/mL
Disopyramide: 2 to 5 mcg/mL
Ethosuximide: 40 to 100 mcg/mL
Flecainide: 0.2 to 1.0 mcg/mL
Gentamicin: 5 to 10 mcg/mL
Imipramine: 150 to 300 ng/mL
Kanamycin: 20 to 25 mcg/mL
Lidocaine: 1.5 to 5.0 mcg/mL
Lithium: 0.8 to 1.2 mEq/L
Methotrexate: varies with use
Nortriptyline: 50 to 150 ng/mL
Phenobarbital: 10 to 30 mcg/mL
Phenytoin: 10 to 20 mcg/mL
Primidone: 5 to 12 mcg/mL
Procainamide: 4 to 10 mcg/mL
Quinidine: 2 to 5 mcg/mL
Salicylate: varies with use
Sirolimus: 4 to 20 ng/mL (12 hours after dose; varies with use)
Tacrolimus: 5 to 15 ng/mL (12 hours after dose)
Theophylline: 10 to 20 mcg/mL
Tobramycin: 5 to 10 mcg/mL
Valproic acid: 50 to 100 mcg/mL