It is typically reimbursed per injection, not per drug
Reviews the role of NAD+ biosynthesis pathways including the nicotinamide salvage pathway modulated by NNMT in cellular energy homeostasis and ageing
Bengtsson NE, Hall JK, Odom GL, Phelps MP, Andrus CR, Hawkins RD, et al
Front Bioinf 4:1346779 Hofacker IL, Lorenz R (2014) Predicting RNA structure: advances and limitations
If you train Monday through Friday with rest days on weekends, a Saturday injection gives your body Sunday to process the initial absorption before returning to training on Monday
But sharing introduces contamination risk from additional needle punctures, liability and legal issues, and dosing complications