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Lawsuits Allege Men Suffer Permanent Propecia Side Effects

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New York, NYPropecia lawsuits have been filed against Merck, alleging that men who used Propecia and Proscar suffered side effects that they were not properly warned about. Furthermore, they allege that they were not warned about the risk of Propecia long-term side effects, which could reportedly continue after medication was stopped.

One such lawsuit was filed in 2012 against Merck. According to the lawsuit (Blocker v. Merck & Co., Inc., et al, case number 1:12-cv-03904), Merck knew or should have known that Propecia was linked to an increased risk of depression, cognitive impairment and sexual dysfunction. The lawsuit alleges that Merck also should have known that the side effects associated with Propecia had the potential to continue even after the patient stopped using the medication.

The lawsuit alleges that the rate of sexual dysfunction related to finasteride (the generic version of Propecia and Proscar) is reportedly as high as 39 percent in published studies.

“In addition, it has been reported in 2003 that only 50% of patients experience resolution of their sexual function adverse events after discontinuation of finasteride,” the lawsuit states. Furthermore, according to the lawsuit, Merck changed Propecia’s label in Sweden to include a warning about the risk of erectile dysfunction after discontinuation of Propecia.

In his lawsuit, Jason Blocker says he was 23 years old in 2005 when he was prescribed Propecia for hair loss. During the time he took Propecia, Blocker “began to suffer severe sexual dysfunction and cognitive impairment.” These side effects allegedly continued even after he stopped taking Propecia and, at the time he filed the lawsuit, still suffered from sexual dysfunction and cognitive impairment.

Blocker further alleges that the statute of limitations does not apply in his case because the defendants concealed and denied material facts that they had a duty to disclose. The lawsuit alleges that the defendants purposely withheld vital information from the plaintiff, solely to delay Blocker from filing his lawsuit.

Blocker alleges Propecia is defectively designed because it can cause long-term side effects including sexual dysfunction. He also claims that the drug is unreasonably dangerous because it did not come with adequate warnings about the risk of side effects.

Merck has filed a motion to dismiss the lawsuit. On June 25, that motion was referred to a judge for a recommendation.

Other lawsuits have also been filed against Merck, alleging men were harmed by the use of Propecia. Lawsuits have been consolidated for multidistrict litigation under MDL number 2331, In Re: Propecia (Finasteride) Product Liability Litigation.


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Recently we have seen increase in such number of cases related propecial side effects. Hopefully drug manufacturers consider these cases and release better drugs.


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