My doctor has recommended Melatonin tablets to help with a sleep issue I have. In Australia the only over the counter Melatonin is natrupathic so it is a few drops in heaps of water and basically useless. To get the 5 to 10mg variety you need a prescription and it is about $60 for 20 tablets. He recommended I buy the good stuff off Ebay from the U.S. and it is about $35 for 100 tablets of the 10mg. I was concerned at first but he said it will be fine with customs which it has been every time I have purchased. The tablets I get are an official brand name so depending on cost it may be worth purchasing a range finder eye drops and see if it gets through.