POTENTIATES CNS DEPRESSANTS (ALCOHOL, BARBITURATES, OPIOD ANALGESICS, SEDATIVES,HYPNOTICS, ANTIPSYCHOTICS AND NEUROLEPTICS. MAOIS, ATROPINE, TRICYCLIC ANTIDEPRESANTS ENHANCE ANTIMUSCARINIC EFFECT. KETOTIFEN POTENTIATES ITS SEDATIVE EFFECT.
MASKS OTOTOXICITY PRODUCED BY AMINOGLYCOSIDES ANTIBIOTICS