S5. Diuretics and other masking agents
What are masking agents?
In sports, masking agents are used to hide or prevent detection of banned substances or illegal drugs like anabolic steroids or stimulants. The use of masking agents lowers the concentration of the substance being ‘covered-up’ in a urine sample. Diuretics are the most widely used masking agents. There are many other substances on the Prohibited List that have been classified as masking agents.
S2. Peptide hormones, growth factors and related substances
S4. Hormone and metabolic modulators
M1. Manipulation of blood and blood components
M2. Chemical and physical manipulation
Substances and methods prohibited at all times
