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.
After about five plasma half lives the steady state is achieved. Drugs having longer half lives take longer time to reach the steady state. Drugs having longer half lives have no immediate effect. For the drugs which need to be monitored, first sample is taken after the steady state has been reached. Lithium for bipolar disorder is an example. Plasma levels are maintained by repeated examinations because the drug can be toxic. Its half life is about 24 hours, so the plasma levels are checked after 5 days.