Contraindications Vitamin B12 injection is contraindicated in pregnant and lactating women, liver disease, kidney disease, infection, iron deficiency, folic acid deficiency, the patient undergoing treatment that has a direct effect on bone marrow, an allergy to medication, vitamin, preservative or cobalt
Start low (50 mg/day), monitor your bodys response, and increase gradually if needed
Over time, maintenance doses are scheduled at longer intervals
For this reason, we based the target weekly absorption from EFSA by dividing their daily recommendations into three meals and applying a formula devised by Stephen Walsh of the UK Vegan Society (see Cyanocobalamin Absorption below)
This standard helps avoid mistakes when giving the shots
If you've tried everything take your vet to the cat and also ask them about B12 How to Give Your Cat a B12 Shot Don't give your cat a B12 shot without consulting your vet first