Click To Print Banned Substance List


Don’t ever consume a “supplement” or pill given to you by your coach/trainer unless you know the contents of what you put into your body.  The athlete is ultimately responsible for their choices!

Drug Testing has been a top priority with the INBF/WNBF for 33 Years!

The backbone of our reputation is the strict adherence to stringent drug testing.  We place the highest importance on ensuring that athletes are drug-free, so as to ensure fair competition at each and every event Worldwide.  We are proud to announce that we have nearly 14,000 urine test results on file since 1989!

The use of drugs is strictly prohibited.

All INBF/WNBF athletes must be 10 years drug free of prescription/pharmaceutical hormones on the banned substance list and two years free of over-the-counter hormones, pro-hormones or banned substances listed or their chemical counterparts, unless otherwise noted, prior to their first INBF or WNBF competition.

NOTICE:  As of January, 2022 urine or polygraph drug test failures for anabolic-androgenic steroids, growth hormones and use of other oral or injectable performance enhancing substances may incur a lifetime ban from INBF/WNBF membership privileges.

INBF/WNBF and World Affiliate Banned Substance List

INBF and WNBF steroid and diuretic testing policies and procedures are compliant with the World Anti-Doping Agency (WADA) Prohibited List.

**The following list of substances and related compounds are banned by the World Natural Bodybuilding Federation.  Their use constitutes grounds for dismissal from WNBF competitions and suspension from membership privileges in the organization for a period of ten (10) years from the failure date**

Please read all supplement ingredients carefully; athletes are responsible for being vigilant regarding their supplement usage.

NEW AMATEUR COMPETITORS ONLY must have not used any pro-hormones for at least two (2) years before joining the INBF/WNBF for the first time.

CONSENT TO DRUG TESTING – When an athlete purchases an INBF or WNBF membership you are providing consent to the INBF/WNBF to urine drug test you at events and/or randomly in and out of season.  Athletes not abiding by this policy will be suspended indefinitely.


At no point may any athlete use a prescription more frequently or at higher doses than it was prescribed by their physician.  Medications may never be used for bodybuilding or weight loss purposes nor may you use a prescription not prescribed to you.  All prescriptions have to be up to date and a copy must be presented to the promoters of all INBF/WNBF sanctioned events in order for the WNBF to issue a therapeutic use exemption (TUE).

The following banned substance list is effective as of  September 2, 2009

All Anabolic Steroids including, but not limited to:
  • Anadrol
  • Anavar
  • Anderone
  • Andropen
  • 1-Androstendiol
  • 1-Androstendione
  • 4-Androstendiol
  • 4-Androstendione
  • 5-Androstendiol
  • 5-Androstendione
  • Bolazine
  • Bolandiol
    • (19-Norandrostendiol)
  • Bolasterone
  • Boldebal
  • Boldenone– Equipoise
  • Boldione
  • Calusterone
  • Cardarine (PPAR)
  • Chioroxomesterone
    • (dyhdrochlormethyltesterone)
  • Clenbuterol
    -Prescribed and non prescribed clenbuterol usage will carry a two (2) Year ban time Frame for NEW athletes wanting to join the INBF/WNBF.
    • Dilaterol
    • Spiropent
    • Ventipulmin
  • Clomid/Clomiphene
    • (Not allowed for use by men as a form of testosterone therapy, or to simply increase testosterone production even when physician prescribed and monitored).
  • Clostebol
  • Danazol
  • Deca Durabolin
  • Dehydrochlormethyltestosterone
  • Desoxymethyltestosterone
  • Dianabol
  • Dymethazine/azine (DMZ)
  • 5a-Dihydrostestosterone
  • Drostanolone
  • Epitestosterone
    • (masking agent)
  • Equipoise
  • Ethisterone
  • Ethylestrenol
  • Fluoxymesterone
  • Formebolone
  • Formestane
    • (anti-estrogen)
  • Furazabol
  • Halodrol
  • 4-Hydroxy-testosterone
  • Mebolazine
  • Mestanolone
  • Mesterolone
  • Methandienone
  • Methandriol
  • Methyltestosterone
  • Oxandrolone
  • Primobolin
  • Stanozolol
  • Sustanon 250
  • Winstrol
  • Testosterone and related compounds
    • Testosterone Cypionate
    • Testosterone Enanthate


**In any form, including creams, gels, patches, pellets, and injections, for any reason, even if physician prescribed is strictly prohibited No Exceptions!

Gas chromatography/mass spectrometry (GC/MS) equipment is used to determine Testosterone/Epitestosterone (T/E) Ratios.  Urine specimens in excess of a 4/1 ratio are red flagged and ruled as a positive test, no matter what the cause.  In the event of elevated T/E results (which can occur naturally in a very small percent of the population) further testing will be done via IRMS/CIR to determine if exogenous testosterone is present in the urine.  This will be done at the athletes expense via a WADA accredited lab in Utah.

Note:  Athletes with an elevated T/E may be banned for 10 years to life even if additional IRMS/CIR testing is not conducted.

Growth Hormone & Peptides

  • ALL HGH & PEPTIDES are banned!  Substances of similar chemical structure and anabolic effect that increase muscle mass even if not expressly listed impose a 10 year ban.
  • Pharmaceutical HGH, HCG, and any other related compounds including Insulin-Like Growth Factors (IGF)
    • GHS (Growth Hormone Secretagogues)
    • MK-677, MK-0677 (Ibutamorin)
    • Ibutamorin
    • IGF-1
    • IGF-1 LR3
    • Somatomedin C
    • SomaDerm
    • Somatropin
    • Sulfation Factor
    • Oral spray or sublingual GH compounds of pharmaceutical origin (recombinant DNA technology)
  • PEPTIDES GHRH – Growth Hormone Releasing Hormones – GHRH’s
    • MOD-GRF (1-29)
    • CJC 1295 DAC
    • HGH Fragment 176-191
    • Hexarelin
    • Ipamorelin
    • Mechano Growth Factor with PEG
    • Sermorelin
    • GHRP-2, GHRP-6

Anabolic Agents, Pro-Hormones, Precursors and Metabolites, Derivatives, and Related Compounds

  • SARM’s (Selective Androgen Receptor Modulators)
  • 5-Etioallocholen-3b,7b,17b-triol and/or substances similar in structure – January 1, 2020 these substances shall carry a two (2) year ban time frame.
  • Any hormone, including insulin, (injectable, oral, sublingual or otherwise) used for bodybuilding purposes
  • Designer and Pro Steroids are Banned and Carry a 10 Year Ban Time-frame
    • Superdrol
    • Sdrol
    • Ergomax LMG
    • Tren
    • Trena
  • All hormonal precursors and their metabolites and isomers. Use of the following substances requires 90 days (3 Months) of abstinence prior to competing in the INBF/WNBF or affiliate federations for the first time.
    • DHEA – There shall be a (3) month amnesty for NEW athletes wanting to join the INBF/WNBF.   Any person supplementing with DHEA and/or it’s metabolites (listed below) are ineligible for 3 months prior to competing with the INBF/WNBF.
    • 7 Keto DHEA – There shall be a (3) month amnesty for NEW athletes wanting to join the INBF/WNBF.   Any person supplementing with 7 Keto DHEA and/or it’s metabolites (listed below) are ineligible for 3 months prior to competing with the INBF/WNBF.
      • 7-ketodehydroepiandrosterone
      • 7-oxodehydroepiandrosterone
      • -hydroxy-DHEA
      • -hydroxy-DHEA

Pro Hormonal Fat Burning Supplements

  • 6 OXO Through 2020 – There shall be a (3) month amnesty for NEW athletes wanting to join the INBF/WNBF.   Any person supplementing with 6 OXO and/or related compounds is ineligible for 3 months prior to competing with the INBF/WNBF.
  • .
    • 6 OXOandrostenetrione
    • 2a,17adimethyl17B-hydroxy5aandrostan3one
    • 3,17ketoetiocholtriene
    • 1,4,6androstatriene3, 17dione
    • 3Alpha (5a-androstane-3a, 17diol)
    • Have been identified as pro-hormonal in nature and are banned.
    • Fat Burning pro-hormone derivatives such as:
    • 317-dihydroxydelta5etiocholane7one (A7D)
    • 317-dihydroxydelta5etiocholane7one diethylcarbonate (A7E), etc are banned
    • 4-Androstene-3,6,17-trione
    • 4-etioallocholen-3,6,17-trione
* The presence of any banned substance in urine (i.e. nandrolone), no matter how it arrived there is ruled as positive (Urine Test Failure)
  • Prescription Thyroid Hormone Medication when used for bodybuilding purposes is banned!  A TUE Must Be Granted For Use
    • Ozampic
    • Prescription Diuretics & Masking Agents including, but not limited to:

    • Any and all prescription diuretics even when doctor prescribed used for bodybuilding purposes are banned for (3) months prior to WNBF competitions.

** If an athlete possesses heart related complications a TUE can be issued for competition.

** Spironolactone that is prescribed for acne MAY NOT be used for 14 days prior to competing in any INBF/WNBF Event, No Exceptions!

  • Acetazolamide
  • Amiloride
  • Bumethanide
  • Bendroflumethiazide
  • Canrenone
  • Chlorthalidone
  • Chlorothiazide
  • Clopaide
  • Cyclothiazide
  • Dichlorphenamide
  • Ethacrynic Acid
  • Furosemide
  • Hydrochlorothiazide
  • Hydroflumethiazide
  • Spironolactone
  • Triamterene
  • Glycerol:  Small amounts of glycerol found in nutritional supplements are not considered banned.

Prescribed and non prescribed clenbuterol usage will carry a two (2) Year ban time Frame for NEW athletes wanting to join the INBF/WNBF.

  • Dilaterol
  • Spiropent
  • Ventipulmin

GHB is banned!


  • Muscle implants of any kind are strictly prohibited
  • Chemicals/Drugs used for the purpose of deceiving or passing the polygraph or urine test are banned!

Other Anabolic Agents, Hormones and Metabolic Modulators including, but not limited to:

  • 17-androdione
  • Androstene TRIONE
  • 5AD
  • Andrestenediol
  • 19norandrostenedione
  • Androstenolone
  • Androstenedione
  • Androstanolone
  • Arimistane
    • Androsta-3,5-Diene-7,17-Dione
  • Clomid/Clomiphene
    (Not allowed for use by men as a form of testosterone therapy, or to simply increase testosterone production even when physician prescribed and monitored).
  • Trenbolone
  • Testosterone
  • 1-Testosterone
  • Testolactone
    • (anti-estrogen)
  • Stenbolone
  • Stanozolol
  • Quinbolone
  • Prostanozol
  • Probenecid
    • (masking agent)
  • Oxymetholone
  • Oxymesterone
  • Oxandrolone
  • Oxabolone
  • Norethandrolone
  • Norclostebol
  • Norbolethone
  • 19-Norandrostendione
  • 19-Norandrostadiendione
  • Nandrolone
  • Mibolerone
  • Methyltestosterone
  • Methylnortestosterone
  • Methyl-1-testosterone
  • 6-Methylandrostendione
  • Methoxygonadiene
  • Methenolone
  • Methasterone
  • Methandrostenolone
  • Nolvadex/Tamoxifen
  • Cardarine (Peroxisome Proliferator Activated Receptor δ (PPARδ) agonists, GW 1516)
  • Clenbuterol (Dilaterol, Spiropent, Ventipulmin)
  • Selective Androgen Receptor Modulators (SARMs)
    • Andarine (GSX-007 or S-4)
    • Cardarine (GW-501516)
    • Ligandrol (LGD-4033)
    • Ostarine (GTx-024, MK-2866)
    • RAD 140 (Testolone)
    • Stenabolic (SR-9009)
    • Tibolone
    • Zeranol
    • Zilpaterol
    • Other SARMs similar in structure and/or physiological effect
      • ACP-105
      • LGD-3303
      • LG-121071
  • Selective Estrogen Receptor Modulators (SERMs)
    • Raloxifene
    • Tamoxifen/Nolvadex
    • Toremifene

Ephedrine, Ephedra, Stimulants, ADD/ADHD Medication

  • Ephedrine and Ephedra may not have been used for 3 months before joining the INBF/WNBF for the first time
  • Using or abusing an ADD/ADHD prescription is strictly prohibited.  You may not share or consume an ADD/ADHD prescription that is not prescribed to you

** Due to the abundance of supplements and pre-workout products containing DMAA and/or related compounds, there shall be a 30 day amnesty period before an athlete is eligible to compete in any INBF/WNBF event for the first time.

  • DMAA
  • 1,3-DimethylAmylamine
  • 1,3-DimethylButylamine
    • (4 amino-2-Methylpantane citrate)
  • Dimethylpentylamine
  • Geranium
  • Methylhexanamine
  • Phenethylamine and its derivatives

View WADA Banned Stimulant List

Psychomotor Stimulants & ADD/ADHD Medication

Stimulants/medications prescribed or non prescribed used for bodybuilding and/or weight loss purposes is banned for use.  Athletes who are physician prescribed medications with “stimulating” effect must have an active prescription and must notify promoters and the INBF/WNBF for a therapeutic use exemption (TUE).  Additionally, these medications may never be abused.   Stimulants or medications that produce similar physiological effects even if not expressly listed here are prohibited for use.

  • Using or abusing an ADD/ADHD prescription is strictly prohibited.
  • You may not share or consume an ADD/ADHD prescription that is not prescribed to you
  • Amphetamines
  • Benzphetamine
  • Bupropion Hydrochloride
  • Cocaine
  • Diethylpropion
  • Dimethylamphetamine
  • Ecstasy
  • Ephedrine
  • Ephedra
  • Liraglutide
  • Lisdexamfetamine (Vyvanse)
  • Lorcaserin
  • Methylenedioxymethamphetamine
  • Naltrexone Hydrochloride
  • Orlistat
  • Methylamphetamines
  • Phendimetrazine
  • Phentermine
  • Sibutramine
  • Speed
  • Topiramate
  • Vyvanse

Cannabis / Marijuana / CBD’s

  • Any substance(s) in this category that produce intoxicating effects are banned for use for 48 hours prior to taking a polygraph examination with the INBF/WNBF.  If an athlete fails a test and the polygrapher determines the athlete is under the influence the consequences are commensurate with our polygraph and/or urine failures ban time frames.