WASHINGTON (Nov. 15) - Two television advertisements for Pfizer Inc.'s impotence drug Viagra should be withdrawn for claiming a return of sexual desire and omitting key information, the Food and Drug Administration said in a letter to the company released on Monday. The ads, with a voice-over that includes "Remember that guy who used to be called 'wild thing'?" and later says "He's back," failed to mention major side effects and why certain patients should not take Viagra, the FDA said. The FDA's letter, dated Nov. 10, also said the 30- and 15-second ads omit to mention that Viagra is...