"ive been taking this for two years now and i love it! i work crazy shifts at work that dont allow me to wake up and go to sleep at the same time ever, so when i end up taking it 2 hours late i dont have to worry about it not being as effective. also, apparently if you completely miss a dose its okay too, i have yet to try this out but it seems awesome in theory. the only real side effect it has caused me is completely losing my sexdrive. i only have one the two days of the iron pills. but as i get older i find thats not really all that important to me anymore anyways! i do take sleep aids everynight to combat the sleep loss however i am not sure if its the medicine that causes this or just other mental disorders i have."