Oxybutynin Chlorideextended Release Extended Release
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Questions & Answers
Side Effects & Adverse Reactions
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Legal Issues
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FDA Safety Alerts
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Manufacturer Warnings
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FDA Labeling Changes
There are currently no FDA labeling changes available for this drug.
Uses
Oxybutynin chloride extended-release tablets are a once-daily extended-release tablet indicated for the treatment of overactive bladder with symptoms of urge urinary incontinence, urgency, and frequency.
Oxybutynin chloride extended-release tablets are also indicated in the treatment of pediatric patients aged 6 years and older with symptoms of detrusor overactivity associated with a neurological condition (e.g., spina bifida).
History
There is currently no drug history available for this drug.
Other Information
Prescribing Information
Oxybutynin chloride extended-release tablets are an antispasmodic, anticholinergic agent. Each Oxybutynin chloride extended-release tablet contains 5 mg, 10 mg, or 15 mg of oxybutynin chloride USP, formulated as a once-a-day extended-release tablet for oral administration. Oxybutynin chloride is administered as a racemate of R- and S-enantiomers.
Chemically, oxybutynin chloride is d,l (racemic) 4-diethylamino-2-butynyl phenylcyclohexylglycolate hydrochloride.
The empirical formula of oxybutynin chloride is C22H31NO3 • HCl.
Its structural formula is:
Oxybutynin chloride is a white crystalline solid with a molecular weight of 393.9. It is readily soluble in water and acids, but relatively insoluble in
alkalis.
Oxybutynin chloride extended-release tablets also contain the following inert ingredients: lactose, mannitol, dextrose, tartaric acid,
colloidal silicon dioxide, magnesium stearate, cellulose acetate, polyethylene glycol, titanium dioxide, triacetin, black iron oxide, propylene glycol, and hypromellose.
Oxybutynin chloride extended-release tablets uses osmotic pressure to deliver oxybutynin chloride at a controlled rate over approximately 24 hours. The system, which resembles a conventional tablet in appearance, comprises an osmotically active core surrounded by a semipermeable membrane. The unitary tablet core is composed of the drug and excipients (including the osmotically active components). There is a precision-laser drilled orifice in the semipermeable membrane on the side of the tablet. In an aqueous environment, such as the gastrointestinal tract, water permeates through the membrane into the tablet core, causing the drug to go into suspension and the osmotic components to expand. This expansion pushes the drug out through the orifice. The semipermeable membrane controls the rate at which water permeates into the tablet core, which in turn controls the rate of drug delivery. The controlled rate of drug delivery into the gastrointestinal lumen is thus independent of pH or gastrointestinal motility. The function of Oxybutynin chloride extended-release tablets depends on the existence of an osmotic gradient between the contents of the core and the fluid in the gastrointestinal tract. Since the osmotic gradient remains constant, drug delivery remains essentially constant. The biologically inert components of the tablet remain intact during gastrointestinal transit and are eliminated in the feces as an insoluble shell.
USP Drug Release Test 3.
Sources
Oxybutynin Chlorideextended Release Extended Release Manufacturers
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Remedyrepack Inc.
![Oxybutynin Chlorideextended Release Extended Release (Oxybutynin Chloride) Tablet, Extended Release [Remedyrepack Inc. ]](/wp-content/themes/bootstrap/assets/img/loading2.gif)
Oxybutynin Chlorideextended Release Extended Release | Remedyrepack Inc.
Oxybutynin chloride extended-release tablets must be swallowed whole with the aid of liquids, and must not be chewed, divided, or crushed.
Oxybutynin chloride extended-release tablets may be administered with or without food.
Adults: The recommended starting dose of Oxybutynin chloride extended-release tablets is 5 or 10 mg once daily at approximately the same time each day. Dosage may be adjusted in 5-mg increments to achieve a balance of efficacy and tolerability (up to a maximum of 30 mg/day). In general, dosage adjustment may proceed at approximately weekly intervals.
Pediatric patients aged 6 years of age and older: The recommended starting dose of Oxybutynin chloride extended-release tablets is 5 mg once daily at approximately the same time each day. Dosage may be adjusted in 5-mg increments to achieve a balance of efficacy and tolerability (up to a maximum of 20 mg/day).
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