will tell you this, it does work well as a sex aid at 50mgs or more. Couple of hours before will do ya fine...have never experienced any sides...about suppression??? I dont know...every time Ive used it- it has been in conjunction with AAS cycle and post cycle for that very reason- loss of libido...If it does suppress dont do it, obviously-there is viagra and a natural product out, that kicks ass, called STAMINA-RX, the shit is for real and increases male orgasim also....gave to a girl too she liked it alot...manufactured by HI-TECH PHARMACEUTICALS, INC out of GA.