Impotance German drug maker, Bayer, will soon come to the rescue of impotent men by manufacturing a drug which could be rival to Pfizer's Viagra. Bayer said its anti-impotence medicine will be in market by 2002. In the U.S., the Food and Drug Administration (FDA) may soon give the green light to TAP Pharmaceutical's new Uprima pill, to help men with erectile dysfunction have sex, to go on sale.