World Athletics (formerly IAAF) is the international governing body for track and field and a WADA Code Signatory. Athletics follows the 2026 WADA Prohibited List without sport-specific modifications. World Athletics has delegated anti-doping operations to the Athletics Integrity Unit (AIU), an independent body responsible for testing, investigations, results management, and sanctions. The AIU works with National Anti-Doping Organizations (NADOs) worldwide. Testing includes in-competition and out-of-competition urine and blood samples, with the Athlete Biological Passport (ABP) used for blood profiling. Sanctions follow the full WADA Code framework: 4 years for intentional violations involving non-specified substances, 2 years for specified substances, and 3 months for Substances of Abuse if proven out-of-competition and unrelated to sport performance. Covers all World Athletics-sanctioned events including World Championships, Diamond League, and Olympic qualification events.
| Substance | Category | Status | Details |
|---|---|---|---|
| 1,2-DMPA (3-Methylhexan-2-amine) | S6 | Prohibited | 2026 WADA Prohibited List S6: Prohibited IN-COMPETITION. Specified Substance. Common in supplements — high contamination risk. Source: WADA 2026 S6 Stimulants. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| 1,3-DMAA (4-Methylhexan-2-amine) | S6 | Prohibited | 2026 WADA Prohibited List S6: Prohibited IN-COMPETITION. Specified Substance. Common in supplements — high contamination risk. Source: WADA 2026 S6 Stimulants. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| 1,4-DMAA (5-Methylhexan-2-amine) | S6 | Prohibited | 2026 WADA Prohibited List S6: Prohibited IN-COMPETITION. Specified Substance. Common in supplements — high contamination risk. Source: WADA 2026 S6 Stimulants. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| 1-Testosterone | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. T/E ratio testing and Steroidal Passport used for detection. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| 2-Phenylbenzo[h]chromen-4-one (α-naphthoflavone) | S4 | Prohibited | Alpha-Naphthoflavone is prohibited under the WADA S4.4 Metabolic Modulators category. As a WADA signatory, World Athletics enforces this prohibition. Prohibited at all times. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Acetaminophen (Paracetamol) | ALLOWED | Permitted | Acetaminophen is NOT prohibited under WADA rules. Common pain reliever. No restrictions for athletes. Source: Not on 2026 WADA Prohibited List. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Asialo EPO | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via Athlete Biological Passport (ABP) blood module and direct urine testing. Source: WADA 2026 S2 Peptide Hormones. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| BAM15 | S4 | Prohibited | BAM15 is prohibited under the WADA S4.4 Metabolic Modulators category. As a WADA signatory, World Athletics enforces this prohibition. Prohibited at all times. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Boldenone | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Known contamination risk from meat. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Boldenone Undecylenate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Known contamination risk from meat. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| CBD (Cannabidiol) | S8 | Permitted | 2026 WADA Prohibited List: CBD is NOT prohibited. Excluded from S8 Cannabinoids. However, athletes warned about THC contamination in CBD products — many products contain trace THC that could trigger a positive test. Source: WADA 2026 S8 Cannabinoids. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Caffeine | MP | Permitted | 2026 WADA Monitoring Program: Caffeine is NOT prohibited. Included in WADA Monitoring Program for data collection only. Athletes can use caffeine freely with no risk of anti-doping violation. Source: WADA 2026 Monitoring Program. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Carbamylated EPO (CEPO) | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via Athlete Biological Passport (ABP) blood module and direct urine testing. Source: WADA 2026 S2 Peptide Hormones. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Carbon Monoxide Rebreathing | M1 | Prohibited | Carbon monoxide rebreathing is prohibited under the WADA M1.4 Blood and Related Components category. As a WADA signatory, World Athletics enforces this prohibition. Prohibited at all times. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Carboxy-THC (11-nor-9-carboxy-THC) | S8 | Prohibited | 2026 WADA Prohibited List S8: Prohibited IN-COMPETITION. Substance of Abuse (reduced sanctions for out-of-competition use unrelated to sport performance). Threshold: 150 ng/mL carboxy-THC in urine. Detection window: 3-30+ days depending on frequency of use. Source: WADA 2026 S8 Cannabinoids. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Clomifene | S4 | Prohibited | 2026 WADA Prohibited List S4: Prohibited at all times. Anti-estrogen. Source: WADA 2026 S4 Hormone and Metabolic Modulators. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Clostebol | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Found in some topical creams and sprays — common contamination source. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Cocaine | S6 | Prohibited | 2026 WADA Prohibited List S6: Prohibited IN-COMPETITION. Substance of Abuse (reduced sanctions for proven out-of-competition use unrelated to sport performance). Non-specified substance. Source: WADA 2026 S6 Stimulants. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| EPO-Fc | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via Athlete Biological Passport (ABP) blood module and direct urine testing. Source: WADA 2026 S2 Peptide Hormones. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Ephedrine | S6 | Conditional | 2026 WADA Prohibited List S6: Prohibited IN-COMPETITION when urine concentration exceeds 10 mcg/mL. Specified Substance. Found in cold/flu medications. Source: WADA 2026 S6 Stimulants. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Erythropoietin (EPO) | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via Athlete Biological Passport (ABP) blood module and direct urine testing. Source: WADA 2026 S2 Peptide Hormones. 2026 M.1 CLARIFICATION: Not only the reinfusion, but also the withdrawal of blood or blood components is now explicitly prohibited, unless for (a) analytical/medical testing or Doping Control purposes, or (b) donation performed at an accredited collection center. Source: 2026 WADA Prohibited List M.1. Under WADA M1 Blood Doping rules, blood withdrawal, storage, and reinfusion to enhance oxygen delivery is also prohibited. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Fladrafinil | S6 | Prohibited | Fladrafinil is prohibited under the WADA S6.A Non-Specified Stimulants category. As a WADA signatory, World Athletics enforces this prohibition. Prohibited in-competition. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Flmodafinil | S6 | Prohibited | Flmodafinil is prohibited under the WADA S6.A Non-Specified Stimulants category. As a WADA signatory, World Athletics enforces this prohibition. Prohibited in-competition. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Formoterol | S3 | Conditional | 2026 WADA Prohibited List S3: Inhaled formoterol permitted up to 54 mcg/24h. Threshold: 40 ng/mL in urine. TUE required if exceeding threshold. Specified Substance. Source: WADA 2026 S3 Beta-2 Agonists. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Furosemide | S5 | Prohibited | 2026 WADA Prohibited List S5: Prohibited at all times. Specified Substance. Masking agent — can dilute urine to hide other substances. Source: WADA 2026 S5 Diuretics and Masking Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Growth Hormone Releasing Hormone (GHRH) | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via blood testing (isoform and biomarker tests). Source: WADA 2026 S2 Peptide Hormones. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Growth Hormone Releasing Peptides (GHRP-2) | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via blood testing (isoform and biomarker tests). Source: WADA 2026 S2 Peptide Hormones. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Growth Hormone Releasing Peptides (GHRP-6) | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via blood testing (isoform and biomarker tests). Source: WADA 2026 S2 Peptide Hormones. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Heroin (Diamorphine) | S7 | Prohibited | 2026 WADA Prohibited List S7: Prohibited IN-COMPETITION. Specified Substance. Substance of Abuse (reduced sanctions for proven out-of-competition use unrelated to sport performance). Source: WADA 2026 S7 Narcotics. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Human Growth Hormone (hGH) | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via blood testing (isoform and biomarker tests). Source: WADA 2026 S2 Peptide Hormones. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Ibuprofen | ALLOWED | Permitted | Ibuprofen is NOT prohibited under WADA rules. Common anti-inflammatory (NSAID). No restrictions for athletes. Source: Not on 2026 WADA Prohibited List. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Methylenedioxymethamphetamine (MDMA) | S6 | Prohibited | 2026 WADA Prohibited List S6: Prohibited IN-COMPETITION. Substance of Abuse. Source: WADA 2026 S6 Stimulants. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Methylphenidate (Ritalin) | S6 | Prohibited | 2026 WADA Prohibited List S6: Prohibited IN-COMPETITION. Specified Substance. ADHD medication — TUE required for athletes with ADHD diagnosis. Source: WADA 2026 S6 Stimulants. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Methyltestosterone | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Oral anabolic steroid. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Morphine | S7 | Prohibited | 2026 WADA Prohibited List S7: Prohibited IN-COMPETITION. Specified Substance. Source: WADA 2026 S7 Narcotics. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Nandrolone | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. Known contamination risk from meat in some regions. Contamination defense available but burden of proof on athlete. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Nandrolone Decanoate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. Known contamination risk from meat in some regions. Contamination defense available but burden of proof on athlete. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Nandrolone Phenylpropionate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. Known contamination risk from meat in some regions. Contamination defense available but burden of proof on athlete. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Ostarine (MK-2866) | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance (SARM). Common contamination risk in supplements. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Pegmolesatide | S2 | Prohibited | Pegmolesatide is prohibited under the WADA S2 Peptide Hormones category. As a WADA signatory, World Athletics enforces this prohibition. Prohibited at all times. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Prednisolone | S9 | Conditional | 2026 WADA Prohibited List S9: Prohibited IN-COMPETITION by systemic routes (oral, IV, IM, rectal). Topical, inhaled, nasal, ophthalmic, dental, auricular, perianal routes permitted. TUE required for in-competition systemic use. Source: WADA 2026 S9 Glucocorticoids. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Prednisone | S9 | Conditional | 2026 WADA Prohibited List S9: Prohibited IN-COMPETITION by systemic routes (oral, IV, IM, rectal). Topical, inhaled, nasal, ophthalmic, dental, auricular, perianal routes permitted. TUE required for in-competition systemic use. Source: WADA 2026 S9 Glucocorticoids. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Propranolol | P1 | Permitted | 2026 WADA Prohibited List P1: Beta-blockers are only prohibited in specific sports (archery, shooting, golf, motorsport, etc.). Not prohibited in this sport. Source: WADA 2026 P1 Beta-Blockers. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Pseudoephedrine | S6 | Conditional | 2026 WADA Prohibited List S6: Prohibited IN-COMPETITION when urine concentration exceeds 150 mcg/mL. Specified Substance. Found in cold/flu medications (e.g. Sudafed). Source: WADA 2026 S6 Stimulants. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Salbutamol (Albuterol) | S3 | Conditional | 2026 WADA Prohibited List S3: Inhaled salbutamol permitted up to 1600 mcg/24h. Threshold: 1000 ng/mL in urine. TUE required if exceeding threshold. Specified Substance. Source: WADA 2026 S3 Beta-2 Agonists. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Salmeterol | S3 | Conditional | 2026 WADA Prohibited List S3: Inhaled salmeterol permitted up to maximum 200 micrograms over 24 hours, not to exceed 100 micrograms over 8 hours starting from any dose (2026 UPDATE — 8-hour limit is new for 2026). All other routes prohibited. Specified Substance. Source: WADA 2026 S3 Beta-2 Agonists. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Stanozolol | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Stanozolol (Injectable) | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Stanozolol (Winstrol) | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Synthetic Cannabinoids | S8 | Prohibited | 2026 WADA Prohibited List S8: Prohibited IN-COMPETITION. No threshold — any detectable level is a violation. Source: WADA 2026 S8 Cannabinoids. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| THC (Tetrahydrocannabinol) | S8 | Prohibited | 2026 WADA Prohibited List S8: Prohibited IN-COMPETITION. Substance of Abuse (reduced sanctions for out-of-competition use unrelated to sport performance). Threshold: 150 ng/mL carboxy-THC in urine. Detection window: 3-30+ days depending on frequency of use. Source: WADA 2026 S8 Cannabinoids. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Tamoxifen | S4 | Prohibited | 2026 WADA Prohibited List S4: Prohibited at all times. Anti-estrogen. Source: WADA 2026 S4 Hormone and Metabolic Modulators. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Testosterone | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. T/E ratio testing and Steroidal Passport used for detection. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Testosterone Cypionate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. T/E ratio testing and Steroidal Passport used for detection. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Testosterone Enanthate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. T/E ratio testing and Steroidal Passport used for detection. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Testosterone Esters | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. T/E ratio testing and Steroidal Passport used for detection. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Testosterone Propionate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. T/E ratio testing and Steroidal Passport used for detection. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Testosterone Undecanoate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Strict Liability applies. T/E ratio testing and Steroidal Passport used for detection. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Tramadol | S7 | Prohibited | 2026 WADA Prohibited List S7: Prohibited IN-COMPETITION. Specified Substance. Added to WADA Prohibited List in January 2024. Source: WADA 2026 S7 Narcotics. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Trenbolone | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Trenbolone Acetate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Trenbolone Enanthate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| Trenbolone Hexahydrobenzylcarbonate | S1 | Prohibited | 2026 WADA Prohibited List S1: Prohibited at all times. Non-specified substance. Source: WADA 2026 S1 Anabolic Agents. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |
| hGH 176-191 | S2 | Prohibited | 2026 WADA Prohibited List S2: Prohibited at all times. Non-specified substance. Detected via blood testing (isoform and biomarker tests). Source: WADA 2026 S2 Peptide Hormones. | World Athletics testing is administered by the Athletics Integrity Unit (AIU) under the World Athletics Anti-Doping Rules (aligned with WADA Code 2021). |