side effects of b12 injections in dogs Vitamin for VITAMIN B12 (Generic) Injectable Solution,

& Davis, G

11th ed.Vahlt LLC

For 5-amino-1MQ specifically: Preclinical studies have not prominently described heart rate elevation as a dominant signal The mechanism (NNMT inhibition, NAD+ preservation) does not have the same direct cardiac implications as nuclear receptor agonism Human cardiovascular data at clinically relevant exposures are limited For physicians, the current evidence base does not support a major cardiovascular safety flag, but the limited human dataset means confident statements are premature

It is listed as a rare adverse reaction in UK product information for both oral and injectable B12 preparations, and most people tolerate B12 supplements well even at high doses