best time to do b12 injection

https://www.rxpepsdirect.com/images/products/thymosin-alpha1.png Size:400 Vials (Box) The injection is typically given in a muscle, most commonly in the upper arm, thigh, or buttock Pfizer injectables Depofort B12 1000 mcg/ml - 5 Ampoules | Tdawi Germany

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