red rash after b12 injection Vitamin site and itchy : r/AskDocs rash from b12 injection Understanding
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Retrieved 13 April 2021

Regular B12 injections contain cyanocobalamin alone

For those with a hectic lifestyle or frequent travel, a B12 injection can be the difference between dragging through the day and feeling your best

ALIMTA was administered intravenously over 10 minutes at a dose of 500 mg/m2 on Day 1 of each 21-day cycle
Paulo (in Portuguese)