vitamin b12 cyanocobalamin injection usp 1,000 mcg/mL 30 mL Multiple-Dose Vial A typical therapeutic course for severe deficiency is daily or weekly injections until blood levels normalize injection vit b12 dosage CYANOCOBALAMIN

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Standard dosing Daily dose: 300-600mcg per day Injection frequency: Once daily, preferably in the morning on an empty stomach Administration route: Subcutaneous injection Most users start at 300mcg to assess tolerance, then increase to 500-600mcg if the lower dose is well-tolerated but results are modest

B12 injection side effects Vitamin B12 shots are generally well tolerated

Some of the most common complaints include: Headache Swelling Rash Facial flushing Itchy skin Dizziness Numbness Diarrhea Vomiting High blood pressure Cold symptoms Anxiety Causes of Vitamin B12 Overdose Vitamin B12 is a water-soluble vitamin, which means that when we ingest too much of it, the excess amounts are flushed out of the body through urine