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FDA OKs over-the-counter version of Merck overactive bladder drug

11:36 am by | 0 Comments

FDA drug

(Reuters) - U.S. health regulators approved a nonprescription version of Merck & Co Inc's Oxytrol to treat overactive bladder in women ages 18 and older, the agency said on Friday.

The U.S. Food and Drug Administration said the over-the-counter version of Oxytrol would be available for women only and that the drug remained available to men by prescription only.

Oxytrol for Women is a patch that contains oxybutynin, a medicine that helps relax the bladder muscle, and is designed to be applied to the skin every four days, the FDA said.

Oxybutynin belongs to a class of drugs known as anticholinergics and of which Pfizer Inc's Detrol is the market leader with annual sales of about $700 million. Oxytrol, for which Merck does not break out sales figures, will be the first drug in the class to be sold over-the-counter.


Merck said it expected the OTC patch to be available in the fall.

Overactive bladder, which affects an estimated 33 million Americans, is a condition in which the bladder squeezes too often or without warning. Symptoms include leaking urine, feeling a sudden and urgent need to urinate, and frequent urination.

The FDA decided to allow the OTC version of the Merck drug based on the results of nine studies of women that demonstrated that consumers can understand the information on the label, properly determine whether the product is right for them, and use the drug appropriately, the agency said.

The FDA last week approved the popular wrinkle treatment Botox from Allergan Inc to treat overactive bladder in people who cannot tolerate or are not helped by drugs from the class to which Oxytrol belongs.

(Reporting by Bill Berkrot; Editing by Lisa Von Ahn)

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