how to give a cat b12 injection How-To: Giving Subcutaneous (SQ) Vitamin Vitamin B12 for Cats: Overview,
Description
One study showed there was a rapid, overnight improvement in appetite in cobalt-deficient animals

As always, avoid letting the needle come into contact with anything this way you avoid contaminating your HCG vial

Some lab testing facilities even state that no doctors order is needed to receive an injection
Safety: Handle with protective equipment
