b12 cattle injection Vitamin B-12 for Animal Use Brand May Vary - Valley Vet Supply | Safe.Pharmacy|Vitamins 12 solution to be administered through injection only Intended for use cats Vitamin B-12 Injection, 1,000 mcg/mL

doi: 10.1155/2018/3067126 117

Long-term safety beyond 12 weeks has not been formally studied in large populations

This is harmless and washes off

Serotonin also affects on the dilation and contraction of blood vessels in the brain (Cutrer 2012)

UK B12 treatment for B12 deficiency without neuro symptoms is 6 loading jabs over 2 weeks followed by a jab every 3 months for B12 deficiency with neuro symptoms present, it is a B12 loading jab every other day for as long as symptoms continue to get better (could mean loading jabs for weeks even months) then a jab every 2 months UK b12 documents BMJ B12 article bmj.com/content/349/bmj.g5226 BSH Cobalamin and Folate Guidelines b-s-h.org.uk/guidelines/gui