first vitamin b12 injection B-12 1000 (VetOne), 100 mL How to Give a B12
Description
Only trained personnel should handle 5-Amino-1MQ
Theres no PK study establishing a sub q dosing equivalent, which means anyone converting an oral dose to a sub q one is guessing at the math

Landstrom AP, Dobrev D, Wehrens XHT

If your cat is to have a chance at survival, you, as your kitty's guardian, have to optimize the immune system and keep it running as efficiently as possible