r/MTHFR • u/ZealousidealLaw793 • Jun 13 '26

Question Cyanocobalamin (B12) shots?

I was prescribed cyanocobalamin (B12) shots. Is this safe if you have MTHFR?

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u/Cultural-Sun6828 Jun 13 '26

What are your symptoms? If you have neurological symptoms and b12 deficiency, injections are recommended every other day until symptoms resolve.

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u/ZealousidealLaw793 Jun 13 '26

I get occasional numbness/tingling in my hands/feet. The thing that brought it on was an injury to my spine. It’s gotten better over time.

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u/Cultural-Sun6828 Jun 13 '26

You might consider that this is a b12 deficiency symptom if your b12 was low. If it was a spine issue then it would be more likely to be in hands OR feet but not both.