over the counter injectable b12 Nature Made Vitamin Sublingual 1000 mcg Sugar Free Fast Dissolve Tablets, 60 Count What else should I know about Cyanocobalamin (Vitamin B12) Injection Amazon Pharmacy: Vitamin B12 (Injectable
Description
About vitamin B12 Vitamin B12 is a nutrient that promotes the health of your nerves and blood cells, making it an essential part of any healthy diet

Got recent bloods showing your B12 level

So if you have any of the below symptoms, you most likely need B12

Dosages used in rodent studies range from 10mg/kg/day to 150mg/kg/day [1, 6, 11]
