That site says one pill of your drug only has 50 mg of caffeine, but look at this:
"In general, one serving of coffee ranges from 40 milligrams, for a single shot (30 milliliters) of arabica
, to about 100 milligrams for strong drip coffee." (Wikipedia).
The other ingredients in your pill are just fillers so you would get more 'drug' from strong coffee
or a red bull (80mg).
You need brain food to make tight deadlines as well as being awake; I'd suggest oily fish to lubricate those brain cells