"i have had mild depression on and off for 3 years and have been taking 10mg vivactil. a recent change in my circumstances means i have been experiencing anxiety attacks, not sleeping and very tearful. i took a 15mg tablet for the first time last night as directed and slept 9 hours solid. however i felt &#039;drunk&#039; all day. didn&#039;t feel safe to drive, unable to concentrate in work and eventually had to come home. i slept another 7 hours and only just feel &#039;normal&#039; again. this drug is not for me! i wasn&#039;t able to function. although i slept well and didn&#039;t have any panic attacks i couldn&#039;t remember where i had parked my car and i also forgot to eat. it&#039;s back to the gp for me"