Complex Regional Pain Syndrome (CRPS)

Formerly called reflex sympathetic dystrophy (RSD), CRPS is a neuropathic pain syndrome that affects your arms or legs. The pain is also out of proportion to the initial injury that caused it.

Patients with CRPS have found relief with low-dose naltrexone (LDN). This low dose refers to doses about 50 times lower than doses of naltrexone typically given to patients addicted to opioids. Although it does not work right away, this medication can improve CRPS patients’ symptoms after months of use.