Oxybutynin chloride, when administered in the presence of a high environmental temperature, can cause heat prostration (fever and heat stroke due to decreased sweating). Diarrhea may be an early symptom of incomplete intestinal obstruction, especially in patients with ileostomy, or colostomy. In this instance treatment with oxybutynin chloride would be inappropriate and possibly harmful.
Oxybutynin chloride may produce drowsiness or blurred vision. The patient should be cautioned regarding activities requiring mental alertness such as operating a motor vehicle or other machinery or performing hazardous work while taking this drug.
Alcohol or other sedative drugs may enhance the drowsiness caused by oxybutynin chloride.
Oxybutynin chloride syrup is indicated for the relief of symptoms of bladder instability associated with voiding in patients with uninhibited neurogenic or reflex neurogenic bladder (ie, urgency, frequency, urinary leakage, urge incontinence, dysuria).
Chemically, oxybutynin chloride is 4-(Diethylamino)-2-butynyl (±)-α-phenylcyclohexaneglycolate hydrochloride. The molecular formula of oxybutynin chloride is C22H31NO3•HCl. The structural formula appears below:
Oxybutynin chloride is a white crystalline solid with a molecular weight of 393.96. It is readily soluble in water and acids, but relatively insoluble in alkalis.
Each 5 mL, for oral administration, contains 5 mg of oxybutynin chloride. In addition, the following inactive ingredients are present: Artificial raspberry flavor; citric acid, USP; D&C Yellow No. 10; FD&C Blue No. 1; glycerin, USP; liquid sugar; methylparaben, NF; propylene glycol, USP; sodium citrate, USP and sorbitol solution, USP.
Oxybutynin Chloride Syrup | Morton Grove Pharmaceuticals, Inc.
Adults
The usual dose is one teaspoonful (5 mg/5 mL) syrup two to three times a day. The maximum recommended dose is one teaspoonful (5 mg/5 mL) syrup four times a day.
Children over 5 years of age
The usual dose is one teaspoonful (5 mg/5 mL) two times a day. The maximum recommended dose is one teaspoonful (5 mg/5 mL) three times a day.
Oxybutynin Chloride Syrup | Pharmaceutical Associates, Inc.
Adults: The usual dose is one teaspoonful (5 mg/5 mL) two to three times a day. The maximum recommended dose is one teaspoonful (5 mg/5 mL) four times a day.
Pediatric patients over 5 years of age: The usual dose is one teaspoonful (5 mg/5 mL) two times a day. The maximum recommended dose is one teaspoonful (5 mg/5 mL) three times a day.
Adults: The usual dose is one teaspoon (5 mg/5 mL) of syrup two to three times a day. The maximum recommended dose is one teaspoon (5 mg/5 mL) of syrup four times a day. A lower starting dose of 2.5 mg two or three times a day is recommended for the frail elderly. Pediatric patients over 5 years of age: The usual dose is one teaspoon (5 mg/5 mL) of syrup two times a day. The maximum recommended dose is one teaspoon (5 mg/5mL) of syrup three times a day.