funny taste in mouth after b12 injection Why Do I Have a Metallic My Getting the COVID-19 Vaccine? funny taste in mouth after

Oral B12 might need several weeks to boost blood levels

[44] In the cytosol [edit] Methylcobalamin and 5-methyltetrahydrofolate are needed by methionine synthase in the methionine cycle to transfer a methyl group from 5-methyltetrahydrofolate to homocysteine, thereby generating tetrahydrofolate (THF) and methionine, which is used to make SAMe

According to the DailyMed label, it is given by intramuscular or subcutaneous injection and is not for intravenous use

Return filled containers according to local arrangements, which may include GP practices, designated pharmacy collection points, or local authority services