Sensory Polyneuropathy Associated with Pyridoxine Overdose.
- Author:
Seung Joo JWA
1
;
Keun Hyuk KO
;
Sung Joo PARK
;
Sa Yoon KANG
Author Information
- Publication Type:Case Report
- Keywords: Paresthesia; Polyneuropathies; Pyridoxine; Vitamins
- MeSH: Aged; Axons; Humans; Leg; Neural Conduction; Paresthesia; Peripheral Nervous System Diseases; Polyneuropathies*; Pyridoxine*; Tablets; Vitamin B 6; Vitamin B 6 Deficiency; Vitamins
- From:Journal of the Korean Neurological Association 2016;34(5):350-352
- CountryRepublic of Korea
- Language:Korean
- Abstract: Pyridoxine deficiency and excess have both been implicated as causes of peripheral neuropathy. A 74-year-old man presented with paresthesia in both legs that first appeared 2 months previously. A nerve conduction study revealed axonal sensory polyneuropathy. He had consumed 100 milligrams of pyridoxine every day for 1 year, in the form of vitamin tablets. His blood levels of vitamin B6 were markedly elevated to above 250 nmol/L. This case indicates that the consumption of high-dose pyridoxine can cause sensory polyneuropathy.
