is sublingual b12 as effective as injections vs. B12 Injections: Which Option Right for You? – WhyNotNatural B12 Under the Tongue: Uses,

Doses of vitamin B12 exceeding 10 mcg daily may produce a hematologic response in patients who have a folate deficiency

Patients who are pregnant or breastfeeding should not take Semaglutide

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[65] In some severe cases of anemia, a blood transfusion may be needed to resolve haematological effects

Vitamin B12 shot side effects Most people tolerate vitamin B12 injections well, but possible side effects include: Mild: soreness or redness at injection site, mild diarrhea, nausea, headache, itching Rare but serious: allergic reactions (rash, swelling, difficulty breathing), low potassium (hypokalemia), dizziness or heart rate changes Get emergency medical help if you have signs of an allergic reaction to Vitamin B12: hives