Penn Herb Wellness Guide
Vitamin B-ComplexFind Products
Side Effects
Vitamin B-complex includes several different nutrients, each of which has the potential for side effects. Look up the unique side effects for each and discuss the potential benefits and risks with your doctor or pharmacist:
- thiamine (vitamin B1)
- riboflavin (vitamin B2)
- niacin (vitamin B3)
- pantothenic acid (vitamin B5)
- pyridoxine (vitamin B6)
- biotin
- folic acid
- the cobalamins (vitamin B12)
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The information presented by TraceGains is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2025.