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.
20 minutes to half an hour, full effect in one hour. The short answer is that Valium (diazepam) has a rapid onset of action, faster that nearly all benzodiazepines. It is effeâ¦ctive orally within 20 to 30 minutes. Its peak plasma (blood) concentration occurs between 30 minutes and 2 hours after administration.