S5. Diuretics And Masking Agents

All prohibited substances in this class are Specified Substances.

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 by intravenous administration 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 anaesthesia

Note

The detection in an Athlete’s Sample at all times or In-Competition, as applicable, of any quantity of the following substances subject to threshold limits: formoterol, salbutamol, cathine, ephedrine, methylephedrine and pseudoephedrine, in conjunction with a diuretic or masking agent (except topical ophthalmic administration of a carbonic anhydrase inhibitor or local administration of felypressin in dental anaesthesia), will be considered as an Adverse Analytical Finding (AAF) unless the Athlete has an approved Therapeutic Use Exemption (TUE) for that substance in addition to the one granted for the diuretic or masking agent.