DROTAVERINE IS AN ISOQUINOLINE DERIVATIVE, IT DOSE NOT MASK SIGNS & SYMPTOMS OF A SERIOUS ILLNESS SUCH AS AN ACUTE ABDOMEN SO THAT DIAGNOSIS IS NOT MISSED. DROTAVERIN IS A MUSCULOTROPIC ANTISPASMODIC DRUG ACTING DIRECTLY ON SMOOTH MUSCLE CELLS. DROTIN PRODUCES SMOOTH MUSCLE RELAXATION PARTICULARLY WHERE SPASM EXISTS. THE ACTION DOES NOT INVOLVE THE AUTONOMIC NERVOUS SYSTEM, HENCE DROTIN IS FREE FROM ANTICHOLINERGIC LIKE SIDE EFFECTS. DROTIN CAN BE ADMINISTERED TO PATIENTS SUFFERING FROM GLAUCOMA AND PROSTATIC HYPERTROPHY WHEN
ANTICHOLINERGIC ANTISPASMODICS ARE CONTRAINDICATED.