Dr. prescribed B12 injections. Pharmacy only gave me vials. Where do you get your needles and syringes? What size?? Where do I inject? : r B12_Deficiency Amazon.com : 12 Gauge Veterinary Needles, Cattle Needle Poultry Injection Needles 10 Sticks, Suitable for Pigeons, Chickens, Ducks, Geese, Pigs, Sheep, Horses, And Other Large And Small Animals (12*20mm) : Patio, Lawn & Garden Q.) The appropriate needle gauge for intradermal injection is: A) 20G B) 22G C) 25G D) 26G How to Remember Needle Gauges for Different Imidsub Q TikTok B12 Injection Needle Size B12 Syringes Is b12 im or sq