Contact your clinician if the lump grows, becomes hard or warm, or causes increasing pain
The US-FDA initially approved the drug in 1942 (7)
Common Side Effects When side effects occurred, they were typically mild, transient, and similar in frequency to placebo groups: Reported Adverse Effects Most Common (occurring in small percentage of participants): Mild to moderate headaches (most frequently reported, often resolving with continued use) Injection site reactions (minor redness, swelling, or irritation at injection site) Gastrointestinal effects (particularly at higher oral doses: mild nausea, diarrhea, flatulence) Fatigue (reported occasionally during initial adaptation period) Rare Events: One case of chest tightness was deemed possibly related to treatment in safety trials
Its easy to get a vitamin B12 injection or infusion with a reputable provider
During the initial treatment period with methylcobalamin, pulmonary edema and congestive heart failure have reportedly occurred early in treatment with parenteral methylcobalamin
Common side effects include: Pain, swelling, or itching at the injection site Nausea or vomiting Diarrhea Headaches Dizziness Hot flushes Can I Get Vitamin B12 Injections On The NHS
