"first week on it at 25mg, half a pill.  my doc allows me to get double the size so i don&#039;t have to buy it as often.  success from night 1  i get drowsy in 10 minutes, and out most every night, for all night. my bed time varies from 9pm to midnight depending on what i&#039;m doing. wake up typically 6am ready to face the day. i am told this doesn&#039;t interfere with  the brains alpha waves. side effects: a little dry sinus and head warmth, not quite a head ache, very acceptable.  me 55 yr old male, blood type o , 185#,  tbi after 2 years, vertigo, headaches and migraines are typical for me,  fibromyalgia, depressed to dysthemia,  memory problems.  i have found run-walking an hour or two a day very helpful, yin yoga very helpful too."