You're welcome. Regular Naltrexone 25mg and 50mg doses are for drug and alcohol relapses, or to prevent them I should say. Low-dose naltrexone such as 4.5mg - 7.5mg shows promise for reducing CRPS pain, they say. I am wary about it only because opioids work, when I can find a doctor who isn't afraid of politics, few and far between. Twenty years of medical records with CRPS and it's the same ole song and dance. Sick of it. Wish doctors would understand that those who truly need pain relief are not drug addicts. They worry you may become addicted, I think they should be more concerned that the pain drives one to suicide. I am not suicidal, it's just a statement, have too much to lose these days.