Diuretics and other masking agents

Diuretics are substances that increase urine output and are misused, for example, in sports with weight classes (such as boxing). Photo: iStock.com/klikk

The use of diuretics and masking agents is prohibited in sport. These substances have the potential to alter the excretion or presence of doping substances and to interfere with or prevent the detection of doping.

WADA (World Anti-Doping Agency) - Prohibited List
_{January 1, 2024}

S5 Diuretics and masking agents

All diuretics and masking agents, including all optical isomers, e.g., d- and l- where relevant, are prohibited.
Including, but not limited to:

Diuretics such as: Acetazolamide; amiloride; bumetanide; canrenone; chlortalidone; etacrynic acid; furosemide; indapamide; metolazone; spironolactone; thiazides, e.g., bendroflumethiazide, chlorothiazide, and hydrochlorothiazide; torasemide; triamterene;
Vaptans, e.g., conivaptan, mozavaptan, tolvaptan;
Plasma expanders administered intravenously, such as: albumin, dextran, hydroxyethyl starch, mannitol;
Desmopressin;
Probenecid; and other substances with a similar chemical structure or similar biological effect(s).

Exceptions•
Drospirenone; pamabrom; and topical ophthalmic administration of carbonic anhydrase inhibitors (e.g., dorzolamide, brinzolamide);
• Local administration of felypressin in dental anesthesia.