As TrueHoop digs into the issue of performance-enhancing drugs and the NBA, one of the most basic questions is: What substances are banned?

The list was long even before growing in the 2011 NBA collective bargaining agreement. By the rules of that deal, the list can grow at any time: For instance, if any performance-enhancing drug becomes illegal, it is automatically added. Similarly, a committee set up by the league and the players' association can add substances as it sees fit.

Anti-Doping and the NBA

Chip Somodevilla/Getty Images

Lawmakers have long called the NBA's anti-doping program soft, and the head of the World Anti-Doping Agency says the program has "gaps." Now that testimony from the investigation into Lance Armstrong has made clear precisely how sophisticated cheaters beat tests, we wonder if the NBA's program can keep up.

TrueHoop on performance enhancers

• Does doping help in hoops?
• WADA: NBA program has "gaps"
• The state of NBA testing
• The list of banned substances

Performance enhancers

• Adrafinil

• Aminoglutethimide

• Amiphenazole

• Anastrozole

• Androsta-1,4,6-triene-3,17-dione (also called androstatrienedione or ATD)

• Androstanediol

• Androstanedione

• Androstene-3,6,17-trione (also called 6-OXO or 4-AT)

• Androstenediol

• Androstenedione

• Bolasterone

• Boldenone

• Boldione

• Bromantan

• Calusterone

• Clenbuterol

• Clobenzorex

• Clomiphene

• Clostebol

• Cyclofenil

• Danazol

• Dehydrochloromethyltestosterone

• Dehydroepiandrosterone (DHEA)

• Desoxymethyltestosterone (DMT)

• Dihydrotestosterone

• 4-dihydrotestosterone

• Dromostanolone

• Drostanolone

• 18a-homo-17b-hydroxyestr-4-en-3-one

• Ephedra (also called Ma Huang, Bishop’s Tea and Chi Powder)

• Ephedrine

• Epitestosterone

• Erythropoietin (EPO)

• 13a-ethyl-17a-hydroxygon-4-en-3-one

• Etilefrine

• Ethylestrenol

• Exemestane

• Fencamfamin

• Fenethylline

• Fenfluramine

• Fenproporex

• Fluoxymesterone

• Formebolone

• Formestane (also called 4-hydroxyandrostenedione)

• Fulvestrant

• Furazabol

• Gestrinone

• Human Chorionic Gonadotropin

• Human Growth Hormone

• 4-hydroxytestosterone

• Insulin-like Growth Factor 1 (IGF-1)

• Letrozole

• Mefenorex

• Mestanolone

• Mesterolone

• Methandienone

• Methandriol

• Methasterone

• Methenolone

• Methyldienolone

• 17a-methyl-3b, 17b-dihydroxy-5a-androstane

• 17a-methyl-3a, 17b-dihydroxy-5a-androstane

• 17a-methyl-3b, 17b-dihydroxyandrost-4-ene

• 17a-methyl-1-dihydrotestosterone

• 17a-methyl-4-hydroxynandrolone

• Methylephedrine

• Methylphenidate

• Methyltestosterone

• Methyltrienolone

• Mibolerone

• Modafinil

• Nandrolone (also called 19-nortestosterone)

• Nikethamide

• 19-norandrostenediol

• 19-norandrostenedione

• Norbolethone

• Norclostebol

• Norethandrolone

• Norfenfluramine

• Normethandrolone

• Norpseudoephedrine (also called cathine)

• Oxabolone (also called 4-hydroxy-19-nortestosterone)

• Oxandrolone

• Oxymesterone

• Oxymetholone

• Pemoline

• Pentetrazol

• Phendimetrazine

• Phenmetrazine

• Phentermine

• Phenylpropanolamine (PPA)

• Probenecid

• Prostanozol

• Pseudoephedrine

• Raloxifene

• Quinbolone

• Stanozolol

• Stenbolone

• Strychnine

• Tamoxifen

• Testolactone

• Testosterone

• Tetrahydrogestrinone (THG)

• Tibolone

• Toremifene

• Trenbolone

• Zeranol

• Zilpaterol

Diuretics/Masking agents

• Acetazolamide

• Amiloride

• Bendroflumethiazide

• Benzthiazide

• Bumetanide

• Canrenone

• Chlorothiazide

• Chlorthalidone

• Clopamide

• Cyclothiazide

• Dichlorphenamide

• Ethacrynic Acid

• Flumethiazide

• Furosemide

• Hydrochlorothiazide

• Hydroflumethiazide

• Indapamide

• Methyclothiazide

• Metolazone

• Polythiazide

• Quinethazone

• Spironolactone

• Triamterene

• Trichlormethiazide