What should I watch for?
It may take a few weeks to notice the full benefit from this medicine.
You may need to limit your intake tea, coffee, caffeinated sodas, and alcohol. These drinks may make your symptoms worse.
You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.
Your mouth may get dry. Chewing sugarless gum or sucking hard candy, and drinking plenty of water may help. Contact your doctor if the problem does not go away or is severe.
This medicine may cause dry eyes and blurred vision. If you wear contact lenses, you may feel some discomfort. Lubricating drops may help. See your eyecare professional if the problem does not go away or is severe.
Avoid extreme heat. This medicine can cause you to sweat less than normal. Your body temperature could increase to dangerous levels, which may lead to heat stroke.
Common and Rare Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
Clumsiness or unsteadiness
fast, slow, or irregular heartbeat
flushing or redness of the face
hallucinations (seeing, hearing, or feeling things that are not there)
unusual excitement, nervousness, restlessness, or irritability
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Acid or sour stomach
difficulty having a bowel movement (stool)
dryness of the eyes, mouth, nose, or throat
stomach discomfort, upset, or pain
Less common or rare
decreased flow of breast milk
decreased sexual ability
difficulty in swallowing
feeling of warmth or heat
increased sensitivity of the eyes to light
nausea or vomiting
trouble with sleeping
unusual tiredness or weakness
Incidence not known
Observed during clinical practice with oxybutynin; estimates of frequency cannot be determined
Bloating or swelling of the face, arms, hands, lower legs, or feet
decreased interest in sexual intercourse
inability to have or keep an erection
loss in sexual ability, desire, drive, or performance
rapid weight gain
tingling of the hands or feet
unusual weight gain or loss
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.