US$ 26.67
conditions in cats which require vitamin b12 injections Cats: Nutrition, Metabolism, and Disease B12 Shot for Ferguson the
Description
[15] [16] Tests may include full blood count, serum B12 levels, anti-intrinsic factor antibodies (to diagnose pernicious anaemia), and sometimes methylmalonic acid or homocysteine levels when the diagnosis is uncertain

doi:10.3390/nu5125031

But drinking regularly and to excess of course will cause health consequences and regular excess consumption can lead to absorption problems with B12 and other nutrients
How Quickly Do B12 Injections Work