Medications

Canada high court voids Pfizer's Viagra patent

Canada's top court on Thursday stripped Pfizer of its patent for Viagra, saying the pharmaceutical giant failed in the patent to identify the active compound in the drug.

Medications

Argentina begins doling out free 'Viagra'

Argentina has begun distributing a free state-produced version of the erection-boosting drug Viagra for the first time, in a move intended to curb its misuse, health authorities announced Thursday.

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