Hi all,
Going back to when my libido problems while on propecia started, I had jock itch. After taking an ointment to cure it, I wanted to prevent it from coming back. I did a lot of heavy activity and in order to control the sweat down there, I started using medicated body powder in my underwear and around my groin. I started noticing that at the end of an active day, rather than getting a bit horny my penis was dead. Hmm. When I didn’t use the body powder, it didn’t happen. So I stopped using it for a while, then used it again, stopped, then again. Each time, I noticed sudden impotence. So I started to do a little research:
Medicinal Ingredients:
Menthol - “Akdogan M , Ozguner M , Kocak A , Oncu M , Cicek E . Effects of peppermint teas on plasma testosterone, follicle-stimulating hormone, and luteinizing hormone levels and testicular tissue in rats . Urology . 2004;64:394-398.” -> Reduces testosterone and kills libido.
Zinc - Too much may have a negative effect on libido.
Non-medicinal ingredients:
Talc - Couldn’t find anything.
Acacia - Yousef MI,“Reproductive performance, blood testosterone, lipid peroxidation and seminal plasma biochemistry of rabbits as affected by feeding Acacia saligna under subtropical conditions.”, Food Chem Toxic (2005) -> no effect on libido
Methyl Salicylate - analgesic, no known effect on libido.
Thymol - Antiseptic, found nothing.
Zinc Stearate - Can’t find anything conclusive, but again it’s a zinc compound which might decrease libido in overdoses.
Eucalyptol - Another antiseptic, nothing.
So basically it comes down to the menthol, and maybe overdose of zinc.
Anyone else use a lot of menthol or zinc while on Propecia? Notice any adverse reactions?