For antimicrobial protection, avoid rubber closures, which can allow contamination through the hole where the needle passes, and may contain rubber additives
Let it sit for 10 minutes, then try again
I am in Germany and noticed my first B12 prescription included this, so I assume it is safe
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Hydroxocobalamin Vitamin B12 1000mcg/1ml Ampoule Pack of 5 ID:J999 , J999 GTIN:9008732009026 Pharmaceutical Product In Stock Added to Your Basket Add to wish list Create new list Important Notice: Pharma products are sold and shipped exclusively to registered medical professionals at verified medical premises
The most commonly reported side effects were mild and included headache, minor gastrointestinal disturbances (flatulence, mild diarrhea at high doses), upper respiratory symptoms, and mild injection site reactions