Ditropan XL (Oxybutynin Chloride Er) Rx Price Comparison: US vs Canada — Save Up to 82% in the US

At the US pharmacies in our data, the lowest listed discount-card price for Oxybutynin Chloride Er is around $9.72. Prices vary by pharmacy, dosage, and pack size, so use the table above to compare specific options near you.

Yes — Cost Plus Drugs lists Oxybutynin Chloride Er at roughly $0.029 per unit, a published price with no membership card or coupon involved. See the three-price comparison above for how that stacks up against discount-card pharmacies.

Canadian pharmacy listings in our data show Oxybutynin Chloride Er priced from about $0.160 per tablet (converted to USD), before shipping. Pack size and pharmacy both affect the final total — see the Canada pricing table for specifics.

Drug pricing is set separately in each country through different negotiation, regulatory, and distribution systems, so the same medication can legitimately carry different price tags on either side of the border. In this case, our data shows the US price is actually the lower of the two once a program like Cost Plus Drugs is factored in — the assumption that Canada is always cheaper doesn't hold for every drug.

Oxybutynin ER is the generic form of the drug. The original brand-name product is Ditropan XL.

Oxybutynin ER is an FDA-approved generic anticholinergic medication used to treat overactive bladder symptoms like urgency, frequency, leakage, and nocturia. It is also approved for use in children six years and older. The medication works by relaxing bladder muscles. It is formulated as an extended-release tablet, typically taken once daily with a full glass of water. The tablets must be swallowed whole—never chewed or crushed—to avoid releasing the medication too quickly and increasing side effects. Your doctor will determine the appropriate dose and treatment duration, which may include periodic evaluations to see if continued therapy is necessary. Taking it consistently at the same time each day can help maintain its effectiveness.

Common side effects of Oxybutynin ER can include dry mouth, dizziness, drowsiness, headache, constipation, nausea, dry eyes, and nasal congestion. Many people use the medication without serious issues, but you should consult your doctor or pharmacist if these effects are bothersome or persistent. Seek immediate medical attention for more serious symptoms, such as difficulty urinating, fast or irregular heartbeat, severe abdominal pain, signs of a kidney infection (like back pain and fever), vision changes, confusion, mood changes, seizures, or swelling. This is not an exhaustive list, so discussing all potential risks and benefits with your healthcare provider is essential.