b12 injection im or subq Cyanocobalamin – 1000 mcg/mL Optimal B12 Injection Sites for

[DOI] [PubMed] [Google Scholar] 28.Liu Y., Guerrero-Juarez C.F., Xiao F., Shettigar N.U., Ramos R., Kuan C.-H., Lin Y.-C., de Jesus Martinez Lomeli L., Park J.M., Oh J.W., et al

Not all B12 that you eat or take in supplements is absorbed and research indicates that to achieve a sufficient daily dose of B12, you should take at least five to 50 micrograms daily or 1,000 to 2,000 micrograms weekly (Del Bo et al., 2019

Always ask your vet for more help if you're not comfortable administering injections and they will be happy to provide more training

Avoid antacids within 2 hours to avoid negative interactions

[19] [21] The duration of therapy depends on the indication and patient response