no way... if anything don't run it 12 weeks or anything like that.. split it up into 4 on /4 off/ 4 on and end with it if you have to... bad thing to run it that long, your liver needs recovery even if you don't think it does. In the summer I ran 100mgs ED for 3 weeks and 50mgs for the last week the same time bruce410 ran it 100mgs ed... I had enough to run it for 12 straight weeks if I wanted but I didn't want to chance it and got a lot outta that mess right there, big pumps, big strength.. all keepable too may I add. I ran it two more 4 week cycles after that but do it smart.