Vitamin B12 Drug Interactions

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.

An Introduction to Vitamin B12 Drug Interactions

Vitamin B12 can potentially interact with a few different medicines. Some of the medicines that may lead to drug interactions with vitamin B12 include:
 
 
 
 
 

Vitamin B12 Interactions Explained

The following sections explain in detail the potentially negative interactions that can occur when vitamin B12 is combined with any of the drugs listed above.

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Written by/reviewed by: Kristi Monson, PharmD; Arthur Schoenstadt, MD
Last reviewed by: Kristi Monson, PharmD;
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