I've been giving Rocky oral melatonin since Jan. after he lost some fur on his tail, even though I didn't know for sure whether or not he has adrenal disease. I have heard that giving melatonin can throw off the results of the Tenn. Hormone Panel. So I would like to stop the melatonin before having the blood test. Does anyone know how long it would take for the melatonin to be out of his system so as not to affect the hormone levels that are tested by the Tenn. Panel? Please email me ASAP because I have already made an appt with the vet, but I can change it today. Thanks, Shron [Posted in FML issue 5302]