cat vitamin b12 injection side effects B-12 in cats? Cat B12 Deficiency: more common

With b12 deficiency there can be an enlargement of red blood cells called macrocytiosis

Suspected adverse reactions can be reported to the MHRA Yellow Card scheme at yellowcard

Sometimes people can take high doses of oral B 12 to provide replacement instead of undergoing injections, but a physician should closely supervise this

Alkaline conditions are used to disrupt the vitamin B12 from the binding proteins, after which the vitamin B12 is generally converted to cyanocobalamin by potassium cyanide, prior to measurement (Klee, 2000)

B12 deficiency affects 15% of Baltimore adults over 50, directly impacting metabolic efficiency