Potential Side Effects While Vitamin B12 injections are generally safe, some people may experience mild side effects, including: Pain or redness at the injection site Mild diarrhea Itching or rash Headache Dizziness Severe allergic reactions are rare but require immediate medical attention
However, complete symptom resolution, particularly for neurological complications, may take several weeks to months depending on the severity and duration of deficiency before treatment
The cost of a B12 injection varies based on insurance coverage and the reason for the injection: Insurance covered: When B12 deficiency is confirmed by lab work and medically indicated, injections are typically covered after your copay and deductible
Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance
The selected vitamins, such as vitamin B12, vitamin C, or a combination of various nutrients, are then administered through a quick and virtually painless injection
Sermorelin Vials (10 mg default) One 10 mg vial holds 50 doses of 200 mcg