imo at least have a serm on hand in case man. i ran a 6 week cycle of hdrol, and a lot of people talked about how mild it was so i figured i'd have no problem. i ended up getting shutdown, not completely but more than i liked. nolva brought me back in about 6-7 days at about 30mg a day. i dunno how well an otc product would have worked, but i think it's always prudent to be prepared for the worst.