We have a superb medication for jet lag. Called Melatonin. In the States it is bought without prescription but here it is harder or impossible to obtain. I assume it is not on a banned drug list for athletes. Maybe if Andy suffers from jet lag repeatedly he should try that?
my son takes meatonin but its band in chemist over here its only perscribed from consultants and its hormonal drug its a nightmare to move through customes each time i go abroad need to carry medical letter as gp are not allowed to prescribe here