That's because the original clinical trials Merck submitted to the FDA only included female participants age 26 and under. Since that's the only population that the FDA has "safety and effectiveness" data for, those are the only people the FDA has said it is allowed to be prescribed for.
This Fox news article points out that Merck is currently in the middle of clinical trials with women over 26 and boys.
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Date: 2007-02-03 08:17 pm (UTC)This Fox news article points out that Merck is currently in the middle of clinical trials with women over 26 and boys.