Per 12oz can: 47.3mg caffeine. Royal Crown (RC) colas have been around for a long time and are currently owned by Cadbury Schweppes. As in the case of Diet Coke â here the diet version has more caffeine than the regular RC Cola. 2.
Modafinil is readily absorbed after oral administration, with peak plasma concentrations occurring at 2-4 hours. The bioavailability of modafinil tablets is approximately equal to that of an aqueous suspension.
Studies reveal that peak plasma levels of caffeine occur from 15 to 60 minutes after ingestion. Studies on the optimal time of pre-event loading for ergogenesis also ranged from 15 to 60 minutes. Blood half-life of caffeine was as low as two and as high as seven hours in the literature I reviewed.tudies reveal that peak plasma levels of caffeine occur from 15 to 60 minutes after ingestion. Studies on the optimal time of pre-event loading for ergogenesis also ranged from 15 to 60 minutes. Blood half-life of caffeine was as low as two and as high as seven hours in the literature I reviewed.