Actual medications may vary depending on the prescribing provider, pharmacy, and applicable regulations
The Ontario Drug Benefit (ODB) database was used to identify patients who were prescribed vitamin B12 injections, and the Ontario Health Insurance Plan database was used to identify all physician claims for intramuscular injections as well as laboratory tests assessing vitamin B12 levels
Nausea, vomiting, diarrhea, and constipation are common, especially in the early weeks of treatment
Plant-based diets contain no natural B12
Rotate injection sites with each weekly dose to minimize the risk of local reactions and injection site irritation
The physician reviewed my health survey and request promptly and phoned me to follow up