but do these really cause a diverse effect?
tramadol and caffeine is a loopy combination.
Caffeine actually is a pretty good performance enhancer, theres loads of studies looking at it and it can increase reaction times, even proven to increase stamina etc
http://jissn.biomedcentral.com/articles/10.1186/1550-2783-7-5
but in finish bottles you are looking at something for a quick hit, so they are after the stimulant effect, but you arent looking at 40mg (1 cup of coffee), your looking at 400-500mg caffeine crushed up.
Then add in Tramadol, which is a pretty good painkiller, its also a mild opiate, but also makes you lose focus, dizzy, etc... (and all recommendations on Tramadol are NEVER crush it up or break the tablets)....
Put those two together and its crazy juice.
(Tramadol is on wada's monitoring list, meaning they test for it and monitor if its being abused with potential for it to be banned down to the line)
Honestly, if they permitted any drink between rounds, camps would be coming up with some loopy shit