How Viagra was discovered by Pfizer

The little blue pill may not have been without one dutiful nurse.

Botox, meet Viagra: Biggest health care deal of Allergan-Pfizer would have to pass antitrust muster – Orange County Register

How I helped Pfizer think through the ethics of Viagra - STAT

Could Viagra Help Prevent Alzheimer's?

Facing Off Against Counterfeit Online Pharmacies: Pfizer Launches New Purchasing Website To Help Alleviate the Guesswork Around Buying Legitimate Viagra® (sildenafil citrate) Online

Father of Viagra Louis Ignarro to receive honorary degree from Ohio State University - Columbus Business First

Viagra: The Happiest of All Happy Accidents? - Longreads

Viagra Goes Generic: 5 Interesting Facts About the 'Little Blue Pill

20 Years of Viagra - The Atlantic

Viagra - Erectile Dysfunction, Side Effects, & Drug Interactions

Tobias Handschuh on LinkedIn: #viagra #pfizer #pharmaceutical #history

The billion-dollar accident - true story of how Viagra was discovered - Mirror Online

How Viagra was discovered by Pfizer

Sildenafil - Wikipedia

Viagra: the little blue pill that revolutionised our sex lives, Viagra