b12 injection pet Rx Vitamin 3000mcg/ml x 100ml for Horses, Dogs, Cats and Livestock — Jeffers Cyanocobalamin (Vitamin B12) Injection is sold as an FDA approved generic drug Cyanocobalamin Injection, 1000 mcg/mL 1mL
Description
M.BuilA.AlmasyL.Ordoez-LlanosJ.et al (2005)

B12 shots are an excellent choice for those who want to boost their energy levels and enjoy long-term health
B12 injections deliver a concentrated dose of vitamin B12 directly into your bloodstream, bypassing the digestive system for maximum absorption

You are very polite and fast I went through Telehealth

Indian journal of pharmaceutical sciences
