By Kristi Monson, PharmD; Arthur Schoenstadt, MD
If you take folic acid, H2 blockers, or proton pump inhibitors in combination with vitamin B12, drug interactions may occur. These interactions could decrease the absorption of the vitamin. In order to reduce your risk of negative interactions, make sure to tell your healthcare provider about all other medications and supplements you are taking before using vitamin B12 supplementation.
eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind.
Site users seeking medical advice about their specific situation should consult with their own physician. Click
Jellin JM, editor. Pharmacist's Letter/Prescriber's Letter Natural Medicines Comprehensive Database Web site. Available at: http://naturaldatabase.com/. Accessed October 8, 2008.
National Institutes of Health. Office of Dietary Supplements. Dietary supplement fact sheet: Vitamin B12 (4/26/2006). NIH Web site. http://ods.od.nih.gov/factsheets/vitaminB12.asp. Accessed October 9, 2008.
Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (2000). Washington, DC: National Academy Press, 2000. Available at: http://books.nap.edu/books/0309065542/html/. Accessed October 89, 2008.
Lexi-Interact [computer program]. Lexi-Comp, Inc.; October 8, 2008.