Drug Index



Mechanism :

Oxybutynin chloride exerts a direct antispasmodic effect on smooth muscle and inhibits the muscarinic action of acetylcholine on smooth muscle.

Indication :

• Urinary urgency, frequency

• Urinary incontinence

• Nocturnal enuresis

• Neurogenic bladder instability/detrusor overactivity

Contraindications :

Contraindicated in patients with urinary retention, gastric retention, or uncontrolled narrow-angle glaucoma and in patients who are at risk for these conditions, in patients who have demonstrated hypersensitivity to the drug substance or other components of the product.

Dosing :


>5 years: 0.2 mg/kg PO in 2-3 divided doses. Max: 15 mg/day.

Transdermal patch:

It is available as 3.9 mg patch. Can use in children >4 years for overactive bladder as 1 patch twice a week.

Adverse Effect :

Dry mouth, constipation, somnolence, nausea, blurred vision, pauses, abdominal discomfort, facial flushing, headache, dizziness, diarrhea.

Interaction :

Anticholinergic Drugs: The concomitant use of oxybutynin with other anticholinergic drugs or with other agents which produce dry mouth, constipation, somnolence (drowsiness), and/or other anticholinergic-like effects may increase the frequency and/or severity of such effects.

03/10/2020 18:56:40 Oxybutynin
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