"i have been taking 25 mg amitriptyline for several years almost every night and really couldn&#039;t be more pleased and grateful. i call it my miracle cure for insomnia, as long as it&#039;s taken at the right time (9 pm). too late in the evening it doesn&#039;t work very well. my initial dose of 50 mg caused too much postural syncope (dizziness upon standing). if i need to boost it, i can take 1mg melatonin, but i will have a later time to rise and a bit of a hangover. i initially took this drug for chronic dyspepsia and i suspect that routine use is keeping that at bay."