The New York Times Personal Health column had an article about using melatonin for jet lag on Wednesday, 4/30/97. You can get it off of Lexis or similar research sites.

The original article included a schedule for when to take the pill (suggest 1/2 mg dose) both before and after travel, varying according to how many time zones and whether east to west (easier on the body) or vice versa; also when in the day to get or avoid daylight. I've found their schedule helpful and effective; unfortunately, it won't be included if you retrieve off Lexis. Send me your snail-mail address, and I can send you a hardcopy (I'm not about to type it all into an e-mail!)