Common Use

Oxybutynin is an antispasmodic, anticholinergic agent used to treat symptoms of overactive bladder, including incontinence, frequent or urgent urination, and increased night-time urination. Oxybutynin works by relaxing muscles in the bladder.

Dosage and Direction

Take oxybutynin orally, with or without food, or with a full glass of water or milk.

Adult Dosage

The recommended dose for adults is one 5 milligram tablet taken 2 to 3 times daily. Do not exceed 4 tablets per day.

Pediatric Dosage

The recommended dose for children over 5 years is one 5 milligram tablet taken twice daily. The maximum dose for children is 3 tablets per day.

Important Note

Oxybutynin should not be used in children under 5 years old. Always consult your doctor before using this medication for proper dosage instructions.

Precautions

• Use with caution in frail elderly, children, and patients with autonomic neuropathy
• Caution advised for those with liver or kidney impairment
• Not recommended for severe gastrointestinal motility disorders
• May cause drowsiness or blurred vision - avoid driving or operating machinery
• May worsen conditions like heart disease, high blood pressure, or enlarged prostate
• Can decrease sweating, leading to heat prostration in hot environments
• Avoid use in hiatus hernia with reflux esophagitis
• Not recommended during pregnancy or breastfeeding without medical advice

Contraindications

• Hypersensitivity to oxybutynin or any component
• Urinary retention or gastric retention
• Severe decreased gastrointestinal motility
• Uncontrolled narrow-angle glaucoma

Possible Side Effects

Serious Side Effects (stop use and contact doctor):

• Allergic reactions
• Hot, dry skin and extreme thirst
• Severe stomach pain or constipation
• Painful urination or decreased urination

Common Side Effects:

• Dry mouth and dry eyes
• Blurred vision
• Mild constipation or diarrhea
• Nausea or stomach discomfort
• Dizziness, drowsiness, weakness
• Headache
• Sleep problems
• Runny nose

Drug Interactions

Oxybutynin may interact with:

• Other bladder medications (darifenacin, tolterodine, etc.)
• HIV/AIDS medications
• Antibiotics (erythromycin, clarithromycin)
• Antifungals (ketoconazole, itraconazole)
• Antidepressants (amitriptyline, fluoxetine, etc.)
• Bronchodilators
• Anticholinergic drugs

Consult your doctor about potential interactions as they may affect drug effectiveness.

Missed Dose

If you miss a dose, take it as soon as you remember. If it's nearly time for your next dose, skip the missed dose. Never double your dose to compensate for a missed one.

Overdose

Symptoms may include:

• Restlessness or fever
• Irregular heartbeat
• Tingling sensations
• Vomiting
• Decreased urination

If overdose is suspected, seek medical attention immediately.

Storage

Store at room temperature between 20-25°C (68-77°F). Keep away from moisture and heat.

Disclaimer

The information provided is for general knowledge only and does not replace professional medical advice. Always consult your healthcare provider about any medications, especially regarding proper use, potential interactions, or side effects. This information should not be used for self-diagnosis or self-treatment.