Vitamin B12 5000 mcg Sublingual Tablets, 30 ct, QC96769 Sale! This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Vitamin B-12 (Cyanocobalamin) supports the body's nerves and blood cells. Quick dissolving and a great tasting way to deliver your B vitamin. No added salt, yeast, preservatives, artificial flavors or colors, and gluten-free.