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In most cases, the longer the exposure, the more severe the symptoms
Common side effects may include: Redness or irritation at the injection site Fatigue Nausea If you experience severe side effects or allergic reactions, seek medical attention immediately
Vitamin B12 deficiency: Long-term use can lower B12 levels, raising anemia and nerve damage risk
Other studies suggested a link to kidney failure, diabetes, and certain cancers
Retrieved from Nathan DM, Buse JB, Davidson MB, Heine RJ, Holman RR, Sherwin R, et al
Once opened, the vial should be resealed properly and returned to cold storage
