vit b12 injectable medication non prescription Vitamin Cyanocobalamin injection 1000 mcg Multiple-Dose Vials — Mountainside Medical 250 mL and 500 mL vials Provides 1 Cyanocobalamin Injection: Vitamin B12 Deficiency

My only issue was with the first shipment, although I paid for overnight shipping it arrived in 4 days and the medicine was not cold

Its not something most people need to worry about due to how rare it is, but if unusual rashes occur after starting B12, speak with your doctor, and a skin patch test to check for allergies to metals may help to identify an issue

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Vitamin B-12 Injectable Solution 1000mcg/mL is a prescription cyanocobalamin injection used in dogs, cats, horses, cattle, sheep, and swine as a supplemental source of Vitamin B12. It is indicated for B12 deficiency linked to poor dietary intake, intestinal malabsorption, cobalt deficiency in ruminants, and gastrointestinal diseases that impair absorption