Everyone's different
See label information about excenel and it's usagehere

certificate of analysis available on request Research Applications Suitable Laboratory Uses for 5-Amino-1MQ NNMT enzyme inhibition assays IC50 determination, target engagement confirmation, and 1-MNA quantification NAD+ salvage pathway modulation studies nicotinamide flux, NMN and NAD+ pool measurement SAM/SAH methyl-donor pathway and epigenetic methylation capacity research Adipocyte biology lipogenesis, adipocyte differentiation, fat mass, and lipid storage pathway studies SIRT1 and SIRT3 activation and insulin sensitivity pathway investigations Mitochondrial function and energy expenditure pathway research Skeletal muscle physiology muscle function, sarcopenia pathway, and mitophagy-related studies NNMT-overexpressing cancer cell line studies anti-proliferative and apoptotic pathway research Gut microbiome modulation research in diet-induced obesity models Cardiovascular metabolic pathway studies homocysteine, NF-B, STAT3, redox signalling Comparative NNMT inhibitor research 5-Amino-1MQ vs

Australian Securities Exchange filing, February 2007
Interestingly, at acidic pH, the protein uses NAD phosphate (NADP) as a substrate to produce nicotinamide adenine dinucleotide phosphate (NAADP), which is hydrolyzed to ADP-ribose 2'-phosphate (ADPRP) [2]
[PubMed Citation] The efficacy of hydroxocobalamin (vitamin B12a) as a specific, nontoxic antidote in acute cyanide poisoning was tested