"i&#039;m a vet with many mental health issues which causes insomnia. i&#039;ve been on quetiapine for 5 years i take 600 to 800 mg each night around the same time and i wake up the next morning refreshed. my doctor also has trazodone paired with it. the only side effects i&#039;ve had is raiding the fridge in the middle of the night and dry mouth. sometimes i get restlest legs but i take lyrica for that and my back."