<prompt> Narrow therapeutic index is seen in-LithiumLincosamideLamotrigineLevatiracetam  <response>: Ans. is a i.e., Lithium Drugs with low therapeutic index High alert drugs Amphotericin B Disopyramide Lignocaine Phenytoin Aminoglycosides Dimercapral Lithium Quinidine Carbamezapine Guanethidine Metaproterenal Tricyclic antidepressants Cyclosporine Isoetharine Minoxidil Theophylline Clindamycin Isoproterenol Primidone Warfarin Clonidine Levothyroxine Procainamide Valproate Digoxin 