An estimated 43 percent of women in the United State experience a sexual problem, and 22 percent experience sexually related personal distress, according to the PRESIDE study, published in 2008 in Obstetrics and Gynecology journal stromectol ingredients After extractive work up, a 70 mg and b 330 mg of crude the target compound 52a were obtained which were used directly and without further isolation and purification in the next step