How often to do NAD: A full guide to dosage and costs of NAD NAD+ Injection Therapy Energy Booster Supplement 500 mg Vitamin B12 Deficiency: Recognition and Management AFP High Vitamin B12 Levels: Causes, Symptoms, and How to Manage Them Here is how I reconstitute my 1000mg vial of NAD+ for my lab rat. , 5ml bac water into vial, Roll, dont shake! , 50 units on a 1ml insulin syringe equals 100mg of NAD+. 20 units equals 40mg NAD+.