how long are b12 injections good for What the benefits of injection? How Often Should You Get
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Needle gauge matters

1997;21(Suppl 3 ):S1223

12.Does vitamin b12 injection for cats interact with other drugs

The injections are usually given intramuscularly, often in the upper arm or thigh

When combined with other vitamins and minerals in IV drips or generalized booster shots, vitamin B12 shots can be pragmatic, efficient, and healthy, especially in individuals who are at a higher risk for vitamin B12 deficiency
