ANALYSIS: Client Profile - Viagra fuels Pfizer's post-merger growth. Bolstered by its recent merger with Warner-Lambert, Pfizer is proving that bigger can also be better. Denise Mann reports on how the pharmaceutical giant is faring in a global mark

After a hostile takeover of Warner-Lambert, Pfizer set a textbook example of brand building with their handling of sildenafil - otherwise known as Viagra, the little blue pill for erectile dysfunction that made impotence a household word.