b12 injections and heart attack Vitamin shots may help reduce the risk of the following conditions: ✓Heart disease ✓Stroke ✓Neurological disorders ✓Problems with thinking memory ✓Vision loss ✓Infertility ✓Neural tube defects in children born to B12 Happy Hour | B12
Description
Once a dog has begun taking a vitamin B12 supplement, small improvements may be seen in just a few days, but it can take several weeks before the dog fully responds to treatment.

Fadok VA, Voelker DR, Campbell PA, Cohen JJ, Bratton DL, Henson PM
Vitamin-B12 injections 1000mcg daily for seven days followed by monthly injections were prescribed on the basis of elevated homocysteine levels, noted the study

Image source: Therapeutic Drug Database:
I have many patients who use both oral forms with B12 shots and injections
They serve different purposes
