Association of HMG-CoA Reductase Inhibitors with Neuropathy

OBJECTIVE: To review the possible association between statins and peripheral neuropathy. DATA SOURCES: Literature was obtained from MEDLINE (1984-September 2002) and International Pharmaceutical Abstracts (1970-June 2002). Key search terms included statin, neuropathy, and HMG-CoA reductase inhibitor. DATA SYNTHESIS: Epidemiologic studies and case reports suggest an increased risk of peripheral neuropathy with statin drugs. Most patients were receiving long-term therapy, although the onset was highly variable. The majority of cases were at least partially reversible with drug cessation. Specific risk factors or mechanisms have not been identified. CONCLUSIONS: Observational data suggest a link between chronic statin use and increased risk of peripheral neuropathy. However, the risk appears to be small relative to the significant cardioprotective benefits.