Safe to use if expired? : r B12_Deficiency Compounded Methylcobalamin (Vitamin B12) Injection, 5mg mL Are expired vitamin b12 syringes still effective? Hi I bought the B12 injectable liquid but there's no use by date on it or how long you have to use it once it's opened. Anyone know the answer? TIA x Butafosfan and Vitamin B12 Injection 10%+0.005%,Nutritional drugs,Bullvet,Bullvet
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expired vitamin b12 injection Delighted I received my B12. I don't see a use by date on them or am I missing it?