Composition
Inj 40 mg: Per 2 ml: Drotaverine HCI 40 mg; amp. Tab 40 mg/80 mg: Drotaverine (as HCI) 40 mg/80 mg.
Indications & Dosage
Biliary spasm, cholangitis, cholecystitis, cystitis, smooth muscle spasm, urinary spasm: ORAL: Adults: Initially 80 mg followed by 40-80 mg three times daily BY IV INJ: Adults: 1-2 amp slowly 1-3 time daily. Can also be administered intramuscularly and intraarterially in peripheral arterial disease Children: Not recommended.
Contraindications
Conditions like cardiac insufficiency, i & ii degree AV block, renal impairment, hepatic impairment, myasthenia gravis, paralytic ileus, pyloric stenosis, toxic mega-colon, and prostatic enlargement.
Precautions
Hypersensitivity to the drug, kidney dysfunction, Downs syndrome, elderly, gastro-esophageal reflux disease, diarrhoea, ulcerative colitis, autonomic neuropathy, acute myocardial infarction, hypertension, conditions characterized by tachycardia, abnormalities in biliary pathway, prolong use, if used with antibiotics such as lincomycin and rifampicin.
Interactions
Amantadine, digoxin, phenothiazines atenolol, tricyclic antidepressants.
Pregnancy
Contraindicated
Lactation
Caution advised
Side Effects
Porphyria, dizziness, vertigo, headache, nausea, vomiting, palpitation, constipation, insomnia, dry mouth, hypotension, confusion (particularly. in the elderly), nausea, vomiting, and giddiness. Very rarely, angle-closure glaucoma may occur.