Using a drug that is not locally approved means that it has not met the standards set by the local authorities. Given the very serious potential side-effects of the toxin (yes a toxin, a poison), you would be very wise to stay with a product that you know has gone through the scrutiny of the FDA. A different product may be just a poor knock-off, may be more or less potent, may have other components in there that can have negative adverse effects, or can simply be manufactured at a facility where quality controls are lacking and you happen to get a bad batch and it's goodbye for your. I personally am very suspicious of Chinese products because of the lack of quality control that takes place in that country. You don't have to think too far back to recall stories of food products from china that caused people to die. Baby formulas, pet food, the story of processed cardboard particles in hamburgers to add substance to the meat. All real incidences, not scare mongering. Sincerely, Martin Jugenburg, MD