US$ 20.13
feline b12 injections at home Issues with subdermal : r/AskAVeterinarian Vital Role of Cat B12
Description
Skin Rash A mild rash can sometimes occur after receiving a B12 shot

Many report improved energy, reduced fatigue, better exercise capacity, and reduced carbohydrate cravings

If you cant find 4-5 mm needles, 6-8 mm ones can also be suitable as long as you inject into an area with enough fat, such as around the belly button

Pharmacol Res 156:104806