injectable b12 vitamin (Generic) Solution for Pets, 100-ml (1000mcg/ml), (Manufacturer may vary) Rx only Sold in 100 mL or 250 mL vials Provides 3 Vitamin B-12 Injectable Solution |

If homocysteine turns out to cause inflammation and therefore joint pain, then vitamin B12 supplementation would be a consideration

Does vitamin B12 injection dosage vary based on deficiency levels

Formulation alternatives may provide relief: Different tablet formulations with alternative inactive ingredients may be better tolerated Liquid preparations can be easier to tolerate and allow flexible dosing Intramuscular injections completely avoid the gastrointestinal tract and are particularly useful for those with absorption issues (such as pernicious anaemia or malabsorption) or persistent oral intolerance Review inactive ingredients: Examine the supplement label for potential irritants or allergens

International Journal of Obesity .Read source (2001)

Theres no established upper limit

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