Some practices may require periodic review appointments to assess injection technique and monitor treatment response
known cases of chronic disease under treatment such as tuberculosis, diabetes, hypertension, hypo or hyperthyroidism, pernicious anaemia, Crohns disease and current use of anticonvulsant drugs
B12 injections are generally well tolerated
No nausea I said 4 only because Ive taken this before through another company
In the case of vitamin B 12 there is no UL, as there is no human data for adverse effects from high doses
How We Evaluated These B12 Picks We reviewed 28 retail and practitioner-grade B12 products based on manufacturer specifications, third-party certifications, and label transparency