Menopausal women had more sex and were happier about it when using an experimental hormone patch hailed by some as a possible female equivalent of Viagra, doctors reported Tuesday. Women on the testosterone patch had sex about four times more than they usually did in two months compared to only one additional session for women given a fake patch containing no hormone, a study found. Those who got real patches also reported more arousal, pleasure and orgasms, and had better self-images. “We found an increase in activity, an increase in desire and a decrease in distress,” said Dr. Robin Kroll, a Seattle gynecologist who reported results of the study Tuesday at a meeting of infertility specialists. The research was sponsored by Procter & Gamble Pharmaceuticals, which is developing the patch, called Intrinsa, with Watson Pharmaceuticals Inc.