Allergic Reactions In rare cases, some people may have a severe allergic reaction to ingredients in the B12 shot
Factors Contributing to Vitamin B12 Deficiency Several factors can contribute to Vitamin B12 deficiency, including reduced stomach acid production in the elderly, which hinders B12 absorption from animal proteins
Zaina, if the bottle is 3ml (3000mcg) and your dosage is 250mcg, you would do 3000 divided by 250, which will give you 12
Zofran (ondansetron) is a medication that helps prevent nausea and the vomiting that can result from your unsettled stomach
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