Viagra to make OTC move?
Pfizer is considering switching its erectile dysfunction treatment Viagra (sildenafil) to over-the-counter status. "As with many of our products, Pfizer has routinely evaluated a number of options including different formulations, new indications, OTC among others and continues to do so," the company says Jan. 10. Pfizer would have to overcome existing safety concerns, particularly Viagra's interaction with nitrate-based medicines, to successfully complete the Rx-to-OTC switch. Increasing competition from Lilly's Cialis (tadalafil) could be the impetus for Pfizer's OTC switch consideration...
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