fen-phen 
(fĕnfĕn′)
(fĕnfĕn′)n.
A combination of two drugs, fenfluramine hydrochloride and phentermine, formerly prescribed for weight loss but withdrawn from the market in 1997 because of potentially dangerous side effects.
- William Hubbs
- William Hyde
- William I
- William I
- William I
- William I
- William II
- William II
- William II
- William III
- William IV
- William J.
- William James
- William Jefferson
- William Jennings
- William John
- William John Clifton, Jr.
- William Joseph
- William Joseph, Jr.
- William, Jr.
- William Julius
- William Lawrence
- William Lee
- William Lloyd
- (William Lyon) Mackenzie