b12 injections causing fatigue Vitamin & Folate: The Overlooked Cause of and Brain Fog https://jcdailynews.com/vitamin-b12-folate-the-overlooked-cause-of-fatigue -and-brain-fog Vitamin B12 Injection | Causes

Chen JW, Ledet T, Orskov H et al (2003) A highly sensitive and specific assay for determination of IGF-I bioactivity in human serum

As I see it, they might be suspicious, they might ask questions, but they have no actual basis to refuse it

This dual action appears to amplify the overall GH, such as improved body composition, lipid profile, insulin sensitivity, and overall metabolic function in laboratory test models

Large, randomized trials show no significant increase in surgical-site infections with a single intra-operative dose

Any suspected side effects from hydroxocobalamin injections should be reported via the MHRA Yellow Card scheme (available at yellowcard.mhra.gov.uk)