In normal sports, it is controversial to use performance enhancing drugs, and is mostly illegal to do. In eSports there are certain leagues that do and don’t crack down on those who do use performance enhancing drugs. One of those is the Electronic Sports League (ESL).
There are multiple drugs that players can take that can give them the edge over opponents, such as energy drinks, but the main culprit is adderall.
Adderall is usually used to treat those with ADHD and Narcolepsy, but some use it recreationally to boost their focus. To my knowledge, adderall gives people a laser focus on anything they are doing, making it very effective in tense situations in eSports.
One account of adderall being explicitly used was said by CSGO player named “Semphis” in an interview:
He mentions at the timeframe 7:58 that everyone at an ESL tournament in 2015 was on adderall.
ESL sooner enacted the first skin test at ESL One Cologne. They also began to work with regulators at the Nationale Anti Doping Agentur to make rules and establish standards for its anti-doping measures.
Should performance enhancing drugs be used in eSports? Well the answer should be simply no, it’s hazardous to an individual’s health if used regularly and it also build tolerance, requiring more of the drug to take any effect.