For sterile injections, USP standards typically limit beyond-use dates to 10 days or less when refrigerated (for Category 2 compounding) unless extended through validated testing
This means they need more aggressive treatment
Symptoms of pernicious anemia include: Excessive weakness, Pale skin, Diarrhea, Weight loss, Fever, Numbness or tingling sensation in the hands and feet, Imbalance, Confusion, Memory loss, and Mood swings
Marchi G, Busti F, Zidanes AL, et al
Lower concentrations mean larger volumes (slightly less convenient) but are more forgiving of small measurement variations