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Description
However, some potential side effects may include pain, redness, or swelling at the injection site, as well as allergic reactions in rare cases

An intramuscular injection (commonly 1,000 mcg , given in the upper arm, hip or thigh) sidesteps the gut entirely and delivers a near-complete dose into circulation within minutes

doi: 10.1097/FTD.0000000000000739 [PubMed] Torbey, M

Vitamin B12 is key to nerve health

Indications: Neurological disorders Antibiotic / Anthelmintic treatment