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b12 injection dosage for post herpetic neuralgia Oral vs. Intramuscular Vitamin in Vitamin B12 Deficiency • The Blood Project A Guide to Vitamin B12
Description
Even with the (dirt cheap) saline and needle cost added, you are still way ahead

10.1097/01.pep.0000223108.03305.5d [DOI] [PubMed] [Google Scholar] 40

When you take a B12 tablet (or any vitamin pill, for that matter), it embarks on a journey through your digestive system
"Folic acid and vitamin B12 supplementation during pregnancy in a population subsisting on a suboptimal diet"

It's essential to continue following a healthy diet and exercise regimen to support the weight loss process
