Oxybutynin

In New Zealand oxybutynin comes as tablets (5mg).

• The usual dose of oxybutynin is 1 tablet two or three times a day.  
• If you are older, your doctor may start you on a lower dose of 2.5 mg two times a day.
• Always take your oxybutynin exactly as your doctor has told you. The pharmacy label on your medicine will tell you how much oxybutynin to take, how often to take it, and any special instructions.

• Take oxybutynin tablets with a glass of water at the same times each day.
• You can take oxybutynin with or without food.
• If you need to cut a 5 mg tablet in half to get your dose, use a tablet cutter (which you can buy from a pharmacy) or talk to your pharmacist who may be able to halve them for you.
• To reduce your urinary symptoms you must keep taking oxybutynin every day.
• If you forget your dose, take it as soon as you remember that day. But if it is nearly time for your next dose, just take the next dose at the right time. Don't take double the dose.

Here are some things to know when you're taking oxybutynin. Other things may be important as well, so ask your healthcare provider what you should know about.

Oxybutynin can impair your ability to do some tasks such as driving or using machines. Alcohol makes this worse. Avoid driving and doing other tasks or actions that need you to be alert until you see how this medicine affects you. Discuss your risk with your health professional.

Oxybutynin can interact with other medicines. Tell your doctor or pharmacist about all medicines you are taking including over the counter medicines, herbal and complementary medicines or recreational drugs. 

Like all medicines, oxybutynin can cause unwanted side effects, although not everyone gets them. Often unwanted side effects improve as your body gets used to the new medicine.