muscle twitching after b12 injections (when will it go away) : r/B12_Deficiency B12 Shots Side Effects And
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[DOI] [PMC free article] [PubMed] [Google Scholar] 11.Yajnik CS, Deshpande SS, Panchanadikar AV, Naik SS, Deshpande JA, Coyaji KJ, Fall C, Refsum H

However, the efficacy was insufficient for drug registration

Most patients choose to maintain results with regular treatments once a week or twice a month
this effect may be due to interference with erythrocyte maturation

Can you overdo it on B12