Thaw one at a time, use it, and discard
Side Effects & Safety Injection site stinging/burning very common, lasting 5-15 minutes (most frequently reported side effect) Mild flushing occasional, less intense than IV route IV-specific: flushing, warmth, chest tightness, nausea common and rate-dependent, managed by slowing infusion GI discomfort with oral precursors mild and infrequent at standard doses Insomnia occasional if taken late in the day (avoid evening dosing) No serious adverse events reported in published human trials for NR 1000 mg/day or NMN 250 mg/day mg to Units Conversion On a standard 100-unit insulin syringe, each "unit" equals 0.01 mL (so 100 units = 1 mL)
Luer-Lok Tip PrecisionGlide needles are smooth and easy to use Scale Alignment: It's easy to hold a BD syringe with the flanges or wings side to side with the scale markings facing you
& Kang, S
If recommended by a healthcare professional, a B12 injection before travel is often scheduled several days before departure
inject slowly and steadily over 35 seconds