This drug will add to the effects of alcohol and other CNS depressants - medication that slow down the nervous system, possibly causing drowsiness. Some examples of CNS depressants are antihistamines or drug for hay fever, other allergies, or colds; sedatives, tranquilizers, or sleeping drug; prescription pain drug or narcotics; barbiturates; drug for seizures; muscle relaxants; or anesthetics, including some dental anesthetics Check with your family doctor before taking any of the above while you are using this drug .
This drug may cause your eyes to become more sensitive to light than they are normally. Wearing sunglasses and avoiding too much exposure to bright light may help lessen the discomfort.
This drug may cause some people to become drowsy or have blurred vision. Make sure you know how you react to this drug before you drive, use machines, or do anything else that could be dangerous if you are not alert or able to see well .
Oxybutynin may make you sweat less, causing your body temperature to increase. Use extra care not to become overheated during exercise or hot weather while you are taking this drug , since overheating may result in heat stroke. Always hot baths or saunas may make you feel dizzy or faint while you are taking this drug.
Your mouth, nose and throat may feel very dry while you are taking this drug. For temporary relief of mouth dryness, use sugarless candy or gum, melt bits of ice in your mouth, or use a saliva substitute. However, if your mouth continues to feel dry for more than 2 weeks, check with your medical family doctor or dentist. Continuing dryness of the mouth may increase the risk of dental disease, including tooth decay, gum disease and fungus infections.