The essential information and documents about Anti Doping can be found on this page:
Since 1st January 2020, the ITTF has signed an agreement with the Court of Arbitration of Sport Anti-Doping Division (CAS ADD), agreeing to delegate its first-instance authority to adjudicate alleged anti-doping rule violations and any sanctions, if applicable, to the CAS ADD and in doing so, accepting the CAS ADD Rules to apply to any doping-related procedure.
WHAT IS DOPING?
In the framework of the World Anti-Doping Code (the Code), to which ITTF is a Signatory, doping is defined as the occurrence of one or more of the anti-doping rule violations. Doping is usually described as being the presence of a prohibited (banned) substance, but there are other ways that an athlete or an athlete’s support personnel can be recognized as having violated an anti-doping rule violation:
What is the Prohibited List (the List)?
It is the single document identifying the substances and methods that are prohibited at all times (in-competition and out-of-competition), in-competition only, and in particular sports. Substances and methods are classified by categories (e.g., steroids, stimulants, gene doping).
Click the below links to enhance your awareness..
General Stay Committed Inadvertent Doping Prohibited List Testing Education Report Doping
For further details visit https://www.ittf.com/anti-doping/
You can also visit WADA for more details https://www.wada-ama.org/en/what-we-do/education-prevention