Helps Treat Vitamin B12 Deficiency 2
Pharmacy delivery 4
Systemic Reactions Including Fever Systemic reactions to high-dose vitamin B12 can include fever, fatigue, and feeling unwell
If side effects do occur, they are generally mild and may include: Pain, discomfort, swelling, or redness at the injection site Diarrhea Headache Bloating Nausea Numbness or tingling Serious side effects are rare and may include: Confusion Dizziness or fainting Muscle pain, cramps, or weakness Extreme thirst Facial flushing Frequent urination Palpitations Fatigue Difficulty breathing Coughing or noisy breathing (wheezing) Extreme pain, swelling, warmth or tenderness in one leg Difficulty swallowing Rash Itching over the body If you experience serious side effects, contact your doctor right away
Sanitize hands and work surfaces
Vitamin B12 injection dosage for adults: Benefits, frequency, and duration