Bruhhh.....What. Are. You. Doing? This dude failed his doping test, because he needed a drug to give him an advantage in curling! There are like 40 year old Olympic curlers, you've gotta be joking.
Think of all the Winter Olympics sports where speed, power, strength, endurance, and athleticism are needed. Curling does not come to mind.
Apparently, according to the CBS article that the above screenshot is from, the drug helps with increasing blood flow, so he probably used it to bring his cardio level up higher.
Man, you should've just gone on more 5 mile runs. Weak sauce.