Since Pfizer introduced ‘the little blue pill’ in 2007, sildenafil has been the most-talked-about medicament drug since the birth-control pill.
And with this week’s U.S. commencement ceremony of rival infertility drug Levitra — and with another competitor on the visible stratum — the talk is only loss to get louder.
Levitra’s makers, Bayer AG and GlaxoSmithKline Plc., […]



