Are there any potentially harmful side effects or safety considerations with vitamin B12 injections
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View all FAQs Important safety information and common side effects The most commonly reported side effect is irritation of the area where the injection is administered. If this occurs, consider changing placement on the body or use injections less often
Concerning symptoms Even if you started a vitamin on your own, or with very basic guidance, you should always talk with your provider and expect lab testing to be discussed if you notice: Unexplained tiredness that does not improve Numbness, tingling, balance problems or vision changes Significant mood changes or confusion Frequent fractures or bone pain Unintentional weight loss, ongoing digestive issues or chronic diarrhea These can have many possible causes
How Often Should You Get Vitamin B12 Injections