Myron--
Five years ago I believe that there were *no* peer-reviewed studies in "reputable" U.S. journals. However, since then, I've seen one and there may be others. Unfortunately, I seem to have misplaced the article and can't remember the name of the journal. I'll try to find the cite, and will report back what I can find in the next few days.
I do, however, know from seeing the dispensing bottle with my own eyes, that a generic form of yohimbine HCl, a 5.4 mg tablet, is/was manufactured as a pharmaceutical product in the U.S. about two years ago by a company with the name Goldline.
This product was obtained by an acquaintance in Mexico at a farmacia and imported to the U.S. I just now called a local pharmacy and asked if they sold this product. The pharmacist told me that she has been a pharmacist for ten years, and that she hadn't heard of it, and that the pharmacy did not carry it. Forgot to ask her about Muse.
Based on my own anecdotal observations and those of a few friends, yohimbine HCl *does* enhance erections and *can* prolong intercourse in healthy males for as long as 2-3 hours.
Unfortunately the psychic and somatic side effects associated with the requisite dose for such (15-20 mg in a 40-yr-old, 70-kg male) are of as much, or more, significance as the sex-enhancement effects. These are: sensory disturbances similar to some psychedelic drugs, sweating, chills, and changes in blood pressure.
Cheers, David |