I've been taking this medication for 2 days now. The only side effects I have had is falling asleep couple of hours later after taking the med.and the next day I've been a little sleepy. For me there has been no headaches, but a very relaxing high! THe reason behind me taking this med. is because I'm taking a lot of others pills that wire me up at night do to a strand of mental disorders. But I need them to help me sleep I taking 10mgs and haven't had any complaints!