It is usually well tolerated, though overdose toxicity is possible. Occasionally side effects include headache, numbness, and sleepiness.<unk>  overdose can cause a peripheral sensory neuropathy characterized by poor coordination, numbness, and decreased sensation to touch, temperature, and vibration. Healthy human blood levels of<unk>  are 2.1 - 21.7 ng/mL. Normal doses are safe during pregnancy and breastfeeding.
Pyridoxine
Folate
Riboflavin
Pantothenic acid
Niacin
Tocopherol
Cholic acid
Thiamine