Having gastric surgery also increases the risk of b12 deficiency
And I took oral b12 tablets for two months not being told not to or knowing the side effects
Our San Francisco nurses set honest expectations and recommend lab follow-up to track progress
Minor side effects can include: A bit of tenderness, puffiness, or pink discoloration right around the puncture A brief warm or flushed sensation Mild headache or nausea Reach out to a medical professional right away if you notice: Redness that keeps spreading, heat, or discharge near the site (possible infection) Hives, facial swelling, or difficulty breathing (possible allergic reaction) Persistent numbness or tingling that spreads beyond the site Fever or chills within 48 hours of injection Safe Needle Disposal and Storage A proper FDA-cleared sharps bin is ideal
The recommended dietary allowance for adults is 2.4 micrograms per day according to the NIH Office of Dietary Supplements (updated 2025)
Before using this product, discuss with your healthcare professional all OTC and prescription medicines you are currently taking
