バイアグラは不妊女性を妊娠させる　

2000/4/5　

アメリカの生殖技術者が不妊に悩む女性にバイアグラを使用した。アメリカの大手製薬会社のファイザーによって特別に考案された座薬が、薄い子宮内膜を厚くする治療を行っていた4人の女性に与えられた。3人の女性が体外受精の失敗を繰り返していたが妊娠し、うち2人は健康な赤ちゃんを出産した。

LONDON (Reuters) - A leading fertility expert in the United States said Wednesday he had used the top-selling male anti-impotence drug Viagra to help women suffering from infertility.
A specially formulated suppository of the drug made by U.S. pharmaceutical giant Pfizer was given to four women undergoing fertility treatment to increase the thickness of the lining of the womb.
Three of the women, who had experienced repeated failures with IVF treatment, became pregnant and two have had healthy babies.
``We improved the (uterus) lining in all of them and optimized the lining in three out of the four,'' Dr. Geoffrey Sher, of the Sher Institute for Reproductive Medicine in Las Vegas, said in a telephone interview.�

``Three out of the four conceived. Two have had babies and one is due,'' he said.
Sher stressed Viagra did not improve pregnancy rates but his research, published in the latest edition of the Journal of Human Reproduction, showed it could help increase the thickness of the lining of the uterus along with the female hormone estrogen.
Research shows the lining should measure nine millimeters for IVF to be successful.
Sher said about one in 20 women whom he treats with IVF have the problem. He estimated that 150,000 women suffer from the condition in the United States, many without realizing it.
``Viagra could benefit a small group of women. But there is hardly an IVF program in the world that doesn't have a handful of patients a year who are not getting pregnant because of the lining problem,'' he said.
``For them it could be a miracle drug if used properly.''
Sher emphasized his findings were preliminary and more study was needed.