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Medically reviewed by Last updated on Jun 1, 2022.

What are other common names?

  • d-(+)-Biotin; hexahydro-2-oxo-1H-thieno[3,4-d]imidazole-4-pentanoic acid
  • Biotin
  • Biotina
  • Biotine
  • Biotine-D
  • Coenzyme R
  • D-Biotin
  • Factor S
  • Vitamin B7
  • Vitamin H
  • Vitamine B7
  • Vitamine H
  • W Factor

What is this product used for?

Biotin is a kind of B vitamin found in many foods you eat. It is also sold as a dietary supplement product. This product may be used to add more biotin to your diet. Biotin may help some people with multiple sclerosis, a disease of the nervous system.

What are the precautions when taking this product?

  • Always check with your doctor before you use a natural product. Some products may not mix well with drugs or other natural products.

  • This product may interfere with some lab tests. Be sure to talk with your doctor about this and all drugs you are taking.

  • Be sure to tell your doctor if you are pregnant, plan on getting pregnant, or are breastfeeding. You will need to talk about the benefits and risks of using this natural product.

  • Eating raw egg whites may decrease the effects of this product.

  • Take extra care if you take drugs for seizures. These drugs can decrease the amount of biotin in your body. These are drugs like carbamazepine, phenobarbital, phenytoin, and primidone.

  • Take extra care and check with your doctor if you have:

    • Heart problems that make you likely to have a heart attack

    • Thyroid problems

When do I need to call the doctor?

Signs of a very bad reaction. These include wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat. Go to the ER right away.

Where can I learn more?

National Institutes of Health, Office of Dietary Supplements

Last Reviewed Date


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