Sildenafil citrate, sold as Viagra, Revatio and under various other trade names, is a drug used to treat erectile dysfunction and pulmonary arterial hypertension (PAH). It was originally developed by British scientists and then brought to market by the US-based pharmaceutical company Pfizer.
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The mole rat is able to endure half an hour of oxygen deprivation.
The finding opens a new avenue of treatment in oncology with a substance used in aesthetics to rejuvecer faces.