can b12 injections be given subcutaneously

Am I ready for the plan that makes results more likely Type:5000 mcg/ml - 30mL vial bacteriostatic Vitamin B12 - 1000MG https://www.vetnpetdirect.com.au/cdn/shop/products/Troy-Vitamin-B12-Injection-Box-combined-web.jpg?v=1621322863&width=1780

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