sex drive was non existent on almost every cycle I have ever done towards end of cycle. threw in at one time some priviron which kicked but i shut down pretty hard on again any cycle after seven weeks or so. 400-600 is perfect and I don't beleive in the mega dose of eq above that range. why ask for major sides? eq only cycle is what it is. 8-10 pounds on highh side of quality muscle, great hardness, and vascualr. i almost wonder at times how mis information gets out on dose and cycle times. pros are not mega dosing on roids its the insulin, gh, etc cocktails. if the way to go was to mega dose how amny pros would be walking around? its hard work, hard diet, gentectics, and discilpine with the roids to assist.