IT ACCELERATES METABOLISM OF :- ORAL CONTRACEPTIVES, ANTICOAGULANTS LIKE DICUMAROL, WARFARIN, PHENYTOIN, BARBITURATES, ACETAMINOPHEN, ALPRAZOLAM, CLONAZEPAM, CLOZAPINE, DOXYCYCLINE, ETHOSUXIMIDE, HALOPERIDOL, METHSUXIMIDE, PHENSUXIMIDE, THEOPHYLLINE, VALPROATE . ITS METABOLISM IS INHIBITED BY :-CIMETIDINE, DILTIAZEM, VERAPAMIL, PROPOXYPHENE, ERYTHROMYCIN, ISONIAZID, DANAZOL, AZITHROMYCIN, TROLEANDOMYCIN, CLARITHROMYCIN, FLUOXETINE, LORATADINE, TERFENADINE, NIACINAMIDE, NICOTINAMIDE, KETOCONAZOLE, ITRACONAZOLE & VALPROATE. DRUGS THAT HAVE BEEN SHOWN, OR THAT WOULD BE EXPECTED, TO DECREASE PLASMA CARBAMAZEPINE LEVELS INCLUDE CISPLATIN, DOXORUBICIN HCL, FELBAMATE,** RIFAMPIN, PHENOBARBITAL, PHENYTOIN, PRIMIDONE, THEOPHYLLINE.
CONCOMITANT ADMINISTRATION OF CARBAMAZEPINE AND LITHIUM MAY INCREASE THE RISK OF
NEUROTOXIC SIDE EFFECTS. IT CAUSES INCREASED LEVELS OF : CLOMIPRAMINE HCL, PRIMIDONE