Results of a systematic review and meta-analysis showed that LDN was safe and effective for reducing pain and improving functional outcomes in fibromyalgia.
Low-dose naltrexone (LDN) significantly reduces pain and improves functional outcomes among patients with fibromyalgia while maintaining a favorable safety profile, according to study results presented at the American College of Rheumatology (ACR) Convergence 2025, held from October 24 to 29, in Chicago, IL.
Fibromyalgia is a chronic pain syndrome characterized by musculoskeletal pain and fatigue, significantly impacting daily function and quality of life.
Current treatment options often provide limited relief, prompting interest in alternative therapies such as LDN — which may act through neuroimmune modulation and enhancement of endogenous opioid activity.
LDN was safe and effective for reducing pain and improving functional outcomes in fibromyalgia.
Author summary: LDN reduces pain in fibromyalgia patients.