is there more than one type of injectably vitamin b12 Vitamins Injections Hydroxocobalamin Injection: Vitamin B12 for
Description
Guidelines for the diagnosis and treatment of cobalamin and folate disorders

2006 Dec;291(6):E1290-4

Injections are subcutaneous (SQ) using an insulin syringe, administered at home after the first clinic injection

Most patients experience mild to moderate nausea that tends to diminish over time as tolerance develops, typically improving after four to eight weeks of continued therapy
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Inspect: Expect a clear pink-to-red solution (the B12 gives the color)

The most important thing you need to remember with TRT is that you need to be consistent with your dosage schedule