My husband just went on it (middle of June) and believe me, it sure made a world of difference. It didn't take too long to kick in.

what dosage are you supposed to take? He takes 120 mg - two 60 mg tablets. He takes all of it at night, and sleeps all night - even snores!! And then in the morning, he's ready to get up. he says he slept enough. So he dosen't have that hung-over feeling, or not like he dosen't want to get up (like before)