US$ 28.93
cost of b12 injections for cats Vitamin B-12 Injection, 3,000 mcg/mL at Tractor Supply Co 12 levels and alleviate associated clinical signs Vitamin B-12 1000mcg - Injection
Description
Table of Contents: What are B12 injections and how do they benefit my health

Concentration: 1% (10 mg/mL) Lidocaine Hydrochloride
& Liu, J

[2] High-dose intramuscular administration creates a tissue depot that releases vitamin D slowly over weeks, potentially enabling a single injection to lift serum 25-hydroxyvitamin D levels into the sufficient range in severe deficiency and to potentially support bone mineralisation, neuromuscular function, and secondary hyperparathyroidism reversal while bypassing the gastrointestinal tract

Always follow your providers guidance on this
Some people may start to see results within a few weeks, while for others it may take a few months