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- What is pentosan, and how does it work (mechanism of action)?
- What brand names are available for pentosan?
- Is pentosan available as a generic drug?
- Do I need a prescription for pentosan?
- What are the side effects of pentosan?
- What is the dosage for pentosan?
- Is pentosan safe to take if I'm pregnant or breastfeeding?
- What else should I know about pentosan?
What is pentosan, and how does it work (mechanism of action)?
Pentosan is a semi-synthetic (man-made) drug that resembles the anticoagulant ("blood thinner") heparin and is used for treating the symptoms of interstitial cystitis. Interstitial cystitis is a condition, usually of unknown cause, in which there is inflammation of the urinary bladder that most frequently causes pelvic pain and frequent urination. The exact mechanism whereby pentosan reduces the symptoms of interstitial cystitis also is unknown; however, scientists believe that pentosan may coat the lining of the bladder and prevent irritating substances in the urine from reaching the cells of the lining. The FDA approved pentosan in September 1996.
What are the side effects of pentosan?
The most common side effects of pentosan are:
Other important side effects include abnormalities of liver tests in the blood. Bleeding from the rectum and other areas also may occur.
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What is the dosage for pentosan?
The recommended dose of pentosan is 100 mg three times daily (every 8 hours) taken at least one hour before or two hours after meals so that food does not retard its absorption. Patients should be evaluated after 3 months, and treatment may be continued for another three months if patients have not improved and they are tolerating pentosan.
Is pentosan safe to take if I'm pregnant or breastfeeding?
Studies of pentosan have not been conducted in nursing mothers.
What else should I know about pentosan?
What preparations of pentosan are available?
PREPARATIONS: Capsules: 100 mg.
How should I keep pentosan stored?
Pentosan should be stored at room temperature, between 15 C to 30 C (59 F to 86 F).
Pentosan (Elmiron) is a medication prescribed for the treatment of interstitial cystitis. Side effects, drug interactions, pregnancy safety, and dosage information should be reviewed prior to taking this medication.
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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Interstitial CystitisInterstitial cystitis (IC)/painful bladder syndrome (PBS) is an inflammatory disease of the bladder that can cause ulceration and bleeding of the bladder's lining and can lead to scarring and stiffening of the bladder. Symptoms of interstitial cystitis may vary among individuals and may even vary with time in the same individual.