Hypersensitivity reaction to cyanocobalamin
While gastrointestinal disturbances, including nausea, vomiting, diarrhea, and abdominal pain are among the more common side effects associated with this medication, there is also a potential risk for inflammation of the pancreas or pancreatitis, as well as a possible increased risk of thyroid tumors but the level of these risks is unknown
Report any concerning symptoms promptly, including chest pain, severe palpitations, persistent nausea, mood changes, or thoughts of self-harm
The risks of pharmaceutical compounding come down to these three things: it is unregulated, it is not required by the FDA to adhere to good manufacturing practice regulations (GMPR), and pharmacies are not required to report any adverse reactions to the FDA