It will probably make you feel weird tomorrow. Aim to take it an hour or 2 before you go to bed, or 10-12 hours before you want to get up. So it's kind of up to you whether you take it now and then go to bed soon, or take it later and risk feeling worse tomorrow.
I used to take 50mg at night for pain and the only side effect I had was a dry mouth. I can't remember having any sort of 'hangover' feeling personally and used to take it just as I was settling down to sleep so ~8 hours before getting up.
Oh also to anyone else who's had experience with this drug, I am absolutely terrified of putting weight on and amitriptyline is notorious for weight gain, Any tips for keeping it off? It's just I'm only 5'2'', so any extra pounds will really show! (Currently 105lbs)
I took it for 2 months and I have to say I hated it. I took it for pain relief (I have chronic pain and chronic fatigue) and my doctor's reasoning was that the drowsiness side effect might cause me to sleep deeper and in turn help the fatigue. Instead (taking 10mg every other day, so very low dose) I would sleep for 14-16 hours at a time on the days that I took the drug. Taking it at 6pm and I'd be asleep by 8pm that evening and be groggy even after that length of sleep. If woken up before I came around naturally I'd be a zombie.
I stopped taking it, unsurprisingly.
But it might be that it just mixed badly with my condition!
Oh and it didn't do anything for my pain!
I'm on gabapentin now and it works so much better for me =]
One week update: no obvious side effects from 10mg per day. Really pleased with that! Sadly no pain reduction either, but it's too soon to tell really.
I am on them, take them an hour before bed. I came off them by consequence felt so rubbish, so I went back on them mid November and still waiting for them to work. I am off work at the minute trying to recover from a spiral of depression, fatigue, stomach pains and general worn down. I am hoping to get back to the doc what's happening with me and hope that the Amitriptyline kicks in soon, my migranes have subsided but the depression and fatigue and sleep disturbances are back and pains. So what's going on there I don't know.
I hated taking amitriptyline for my migraines, made me think weried things and dizzy before i went to sleep. Then my limbs felt so heavy when i woke up. But im glad looking down at the other posts, people have experience the drug positively.
I knew someone who took it. They got really fat and had severe side affects. They have been off it for over a year now and still complain of headaches and dizzyness. Before she took it she was really thin but now she is still grossly over-weight. Maybe it will work for you though.