Negative controls with α-PHP or 4F-α-PVP in KHB without hepatocytes, and with KHB and hepatocytes with no medicine were incubated at the same time. Every incubation was performed once due to substantial expense of pooled human hepatocytes, but beneficial and adverse controls ended up involved to document proper metabolic activity https://sandrag536qon2.blogoxo.com/30400826/facts-about-4f-php-revealed