I just ordered some Yucca the other day. Not really sure in what form it is coming, only that it is capsules. When I have my hands on it, I'll let you know.
Maybe when I see a doctor next, I'll mention the Naltrexon. Not really sure what my next step is. Still have to retest myself, but I haven't ha any time. no time, just plenty of sickness and fatigue. :p