London - Scientists are developing the first "orgasm pill" that will do for women what the anti-impotence pill Viagra does for men, newspapers reported yesterday. The pill could be available in the year 2000 after initial trials among more than 500 women across Europe suggested the treatment was impressively effective, according to the Sunday Times. Pfizer, the US company that developed Viagra, was one of three companies competing to market the first orgasm pill for women, the paper said. Leading scientists believe they can repeat the success of Viagra with a pill for women.