Long-acting Vitamin B12 & Selenium injection SMARTSHOT B12 Plus SE is a long-acting, vitamin B 12 and selenium injection for sheep and calves
The solution should be clear and colourless to slightly yellow
Easy measuring: At ~3.33 mg/mL, 1 unit 33.3 mcg on a U-100 syringe, so 100 mcg 3 units and 300 mcg 9 units small, readable volumes on the U-100 scale
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doi:10.1056/NEJMoa2410659