Webber Naturals Vitamin B12 Ultra Strength 10000 MCG helps form red Dosage: Dissolve 1tablet daily under the tongue or as directed by a physician. For use beyond 2 weeks, consult a physician.Caution: Consult a physician if you are pregnant or breastfeeding. Some people may experience gastrointestinal disturbances, fever, chills, hot flushing, dizziness, malaise and/or acne form, in which case discontinue use. If you are taking prescription medications, consult a physician prior to use. Keep out of reach of children.