Julia Chang a la sensiblehealth says it is fine for alcoholic to take, though I understand your reservations. Depending on where you are, you CAN buy the gold coin grass in herb/leaf form, you can then make a tea from it (leaf wiv 60g boiled water)
You can buy it online, from a UK based/online herb shop, but you might have more luck looking around china town? for herb names, see:
-- You can get a glycol (sugar based) extract but it might work out more expensive.
Might I recommend Chanca Piedra? you can get it from
(or eBay, or any where else really)