I was consid. Sub. Melatonin for seroquel (quetiapine) as I have iss. W/ the side effects. Weigh about 90 lbs what dose of melat. Wld be advisable? For Sleep aid?

First and foremost. do not discontinue Seroquel (quetiapine) without discussing this with your prescribing physician, That said, 3 mg of Melatonin is a reasonable starting dose if you weight 90 lbs.