As a bonus, if we already have a heart condition and an abundant supply of prescription nitroglycerin tabs, we can perform the aforementioned prank to give all our friends heart attacks too! 😄
A tab of NTG is only 0.5mg, a drop of pure NTG (so around the size of the tab) would be in the ballpark of 125 mg, so the tablet contains very little NTG. Id wager a tiny pop if any.