What Does Anti-Doping Control Actually Regulate? From the Three Criteria of the Prohibited List to What Amateur Cyclists Should Know

When people mention “doping in sports,” most cyclists picture professional athletes denying accusations on camera, only to have their results retroactively stripped years later. That’s what news headlines look like, but that’s not what the system looks like. The anti-doping framework that actually operates is more like a composite system combining pharmacological criteria, administrative procedures, allocation of legal responsibility, and educational outreach—and its reach has long since extended beyond the professional racing circuit.

If you’ve competed in domestic age-group races, ridden a Gran Fondo in Japan or Europe, signed up for the cycling events at a national games, or simply wondered “why does a team doctor have to go through so much trouble just to prescribe something,” this article aims to clarify the most fundamental and most frequently misunderstood points.

One premise that needs to be stated upfront: this article explains the “concepts and logic” of the system, not the regulatory text you can use for reference. The Prohibited List is updated annually, and international standards are revised as well. Any specific provision, classification detail, or threshold for determination is subject to the latest official announcements from the World Anti-Doping Agency (WADA), the Union Cycliste Internationale (UCI), and the anti-doping organization of your respective country. This article also does not provide any medication advice.

1. Why a “globally unified” anti-doping framework came into existence

Before the 1990s, doping control in sport was essentially a patchwork of independent efforts. Each international federation, each national sports authority, and even each major event had its own set of rules, its own testing menu, and its own penalty scale. The result was three problems that were very difficult to handle.

First, standards were inconsistent. The same substance was prohibited in one sport but not another; the same violation earned a two-year ban in one country and a mere warning in another. Athletes moving across countries and events had no way to know what applied to them.

Second, there was mutual non-recognition. An athlete suspended by an international federation could still compete domestically; conversely, a domestic sanction might not be recognized on the international stage. Enforcement effectiveness had gaps.

Third, there was the concern of the player serving as referee. When control, testing, investigation, and adjudication were all handled by the same event organizer or federation, the credibility of the process was easily questioned whenever a star athlete or commercial interest was involved. The systematic team doping scandals that erupted in road cycling in the late 1990s were precisely one of the key events that pushed this structural problem into the open.

WADA was established in 1999 to address these three issues. Its core output is not “catching people,” but rather a set of rule texts that the whole world can align on: the World Anti-Doping Code (commonly referred to as the Code), along with a series of International Standards beneath it, covering the Prohibited List, testing and investigations, laboratories, therapeutic use exemptions, privacy protection, education, and signatory compliance.

There is a practical benefit to understanding this framework: when you see “this country’s rules differ from that country’s rules,” it’s usually not that the rules themselves differ, but rather the level of implementation and the resources invested differ. The rule texts are shared, but who gets included in the testing pool, how many times a year they’re tested, and whether an event has a doping control budget vary enormously from place to place.

2. The Prohibited List is not a “blacklist of drug names,” but a set of classification criteria

This is the most common misconception. Many people assume the Prohibited List works like a customs list of contraband, itemizing drug names one by one, and that anything not on the list is safe. In reality, that’s not how it works.

The main body of the Prohibited List consists of “categories” plus “examples.” Each major category describes the pharmacological characteristics of that class of substances, lists a number of representative substances, and then ends with a catch-all clause along the lines of “and other substances with a similar chemical structure or similar biological effect(s).” This design is deliberate—because “designer steroids” synthesized specifically to evade detection will always stay one step ahead of any list. If the approach were exhaustive enumeration, the system would inevitably always be behind.

So what qualifies a substance or method to be placed on the list? WADA uses a two-of-three criteria framework:

1. Has the potential to enhance sport performance (actual evidence or potential possibility)
2. Represents an actual or potential health risk to the athlete
3. Violates the spirit of sport (a set of values described in the Code’s preamble, including honesty, health, fair play, respect for rules and others, etc.)

Meeting any two of these is sufficient for inclusion. There is also an independent pathway: a substance or method that has the capacity to mask other prohibited substances can itself be prohibited—which is why diuretics are on the list. They don’t exactly make you ride faster, but they dilute urine and alter excretion dynamics.

The “two-of-three” design frequently sparks discussion. Some ask: why regulate substances that are harmful to health but don’t enhance performance? Others ask: why not allow substances that enhance performance but are safe? The system’s answer, broadly speaking, is that anti-doping is not merely a technical rule for “maintaining competitive fairness”—it also serves the purposes of protecting athlete health and preventing competitive sport from becoming an arms race of “whoever is willing to do more damage to themselves wins.” This position has been debated in academic and ethical circles (more on that later), but understanding it is the key to understanding the entire system.

3. The skeleton of the list: substances, methods, and the difference between in-competition and out-of-competition

The organization of the Prohibited List can be grasped with a broad framework. The list is divided into three major blocks: prohibited at all times (both in- and out-of-competition), prohibited in-competition only, and prohibited in particular sports. Substance categories are numbered with an S prefix, methods with an M prefix, and particular sports with a P prefix.

This table only presents the classification skeleton, not the content of the list itself. Which specific substances fall under each category, which routes of administration, and whether there are concentration conditions or reporting thresholds can all change annually. The only correct way to check actual status is to consult the official version of the Prohibited List for the current year, or use the official drug lookup tool, and be sure to have a physician or pharmacist assist in interpretation.

What “In-Competition” Actually Means

“In-competition” has a clearly defined time window under the rules—it is not simply “the few hours of the race itself.” Generally speaking, it starts at a certain point on the day before the competition and extends until the conclusion of all sample collection procedures related to that event; for multi-day events or stage races, the determination may differ. The exact definition is governed by the regulatory text and the rules of the sport in question.

The practical significance of this is enormous. If a substance is prohibited “in-competition only” and you take it the night before the race, it may very well fall within the in-competition time window. Many amateur athletes mistakenly believe that “taking it the day before the race is fine”—this is a highly dangerous assumption.

Another point that is often confused is this: “In-competition only” does not mean you can use it freely out of competition. What it means is that out-of-competition use does not constitute that particular violation; however, if a metabolite of the substance remains in your body on race day and is detected, the violation still stands. The retention time of a substance in the body is influenced by multiple factors—dosage, individual metabolism, kidney function, hydration status, and more—and there is no universal “safe waiting period” that applies across the board. This is precisely why every related decision must involve medical professionals.

4. It’s Not Just “Drugs” That Are Banned—“Methods” Are Too

Category M reminds us that anti-doping regulation targets behaviors that secure an unfair advantage or interfere with testing; whether the vehicle is a chemical substance is not the point.

M1: Blood Doping. Conceptually, this covers methods of artificially increasing oxygen-carrying capacity, including withdrawing one’s own blood for storage and later reinfusion (autologous transfusion), transfusing someone else’s blood, and using products that increase red blood cell production or alter oxygen transport efficiency. Many people assume that “transfusing your own blood isn’t cheating,” but from the logic of the rules, this is precisely a classic case of blood manipulation: you have not ingested an external substance, yet you have artificially altered your body’s ability to transport oxygen—and it carries clear health risks (increased blood viscosity, infection and embolism risks during storage and reinfusion).

M2: Chemical and Physical Manipulation. This category has two facets. The first is tampering with samples: urine substitution, dilution, adding interfering substances, or using a catheter to obtain urine that is not your own. The second is restricted intravenous infusions: intravenous infusions and injections are restricted beyond certain conditions because they can rapidly alter blood parameters, dilute urine, or accelerate recovery. Here lies a very practical trap—an IV drip administered at a medical facility for therapeutic purposes and an IV drip in a hotel room for “nutrition and recovery” are two completely different things under the rules. The former generally constitutes legitimate medical treatment (though documentation or an exemption may still be required depending on the circumstances); the latter carries extremely high risk.

M3: Gene and Cellular Manipulation. This covers behaviors that enhance athletic performance by altering gene sequences, modulating gene expression, or using modified cells. For most people, this category still feels far removed from daily experience, but the rules have chosen to close the door in advance rather than wait for a case to emerge before patching the gap. This “preventive legislation” mindset is common in the anti-doping field.

5. A Violation Is Not the Same as “Testing Positive”: The Full Spectrum of ADRVs

This is the second major misconception. Many people assume that the anti-doping world has only one offense: a prohibited substance detected in a sample. In reality, the Code defines an entire set of “Anti-Doping Rule Violations” (ADRVs), and a positive sample is just one of them. In recent versions of the rules, there are approximately eleven types of ADRVs (the exact list and wording are governed by the latest version of the Code):

After reviewing this table, several important points emerge.

First, the anti-doping rules do not apply only to athletes. Coaches, team managers, athletic trainers, team physicians, mechanics, and even family members who assist with care can all become “Athlete Support Personnel” in specific roles and be bound by the rules. This is especially evident in items 8, 9, and 10.

Second, “not testing positive” does not mean you are in the clear. Items 2, 5, 6, and 7 can all be established without any positive sample; the evidence may come from customs records, communications, financial transactions, witness testimony, or documents obtained through investigation. Over the past decade or so, the proportion of non-analytical cases has risen significantly—this reflects a structural shift in anti-doping from “testing urine” toward “investigation.” Simply pouring resources into increasing the number of tests has its limits; building investigative authority, whistleblower protection, and inter-agency cooperation is what reaches the layers that “testing cannot catch.”

Third, item 3 is easier to trip over than most people think. Once notified for testing, an athlete must generally remain within the visual range of the doping control officer or chaperone until collection is complete. Stepping away to shower, leaving the venue, taking a phone call in another room, or saying “I’ll go accept my award first and come back”—these seemingly harmless actions can all be deemed evasion or failure to complete collection under the procedures. The rules typically allow athletes to handle necessary matters (such as receiving awards, giving interviews, or cooling down) while accompanied, but the key is to make the request and do it under supervision, not to leave on your own.

6. The Principle of Strict Liability: Why “I Didn’t Know” Is Not a Defense

The most uncomfortable and most frequently criticized core design of the anti-doping system is the principle of strict liability: as long as a prohibited substance is found in your sample, a violation is established—there is no need to prove intent or negligence on your part.

Why is it designed this way? Because if the standard were “intent must be proven,” the system would be paralyzed in practice. Proving that an adult “knowingly” took a pill containing a particular substance is extremely difficult; and every athlete who tests positive could claim, “I didn’t know what it was; someone else gave it to me.” The system places the responsibility for “knowing what you put into your body” squarely on the athlete.

But strict liability does not mean “maximum penalty across the board.” The system draws a distinction between establishing liability and determining the sanction:

In other words, if you can prove the source of contamination (for example, that a particular batch of supplements was tested and indeed contained an undeclared ingredient), and prove that you exercised reasonable due diligence, the sanction period may be significantly reduced. But this burden of proof is extremely difficult and expensive to meet, and it requires substantive evidence—not merely verbal claims. You would need to retain products from the same batch, send them to a credible laboratory for testing, prove that the substance detected matches what was found in your body, and explain why choosing that particular product in the first place was “reasonable.”

For amateur athletes, this path is practically a dead end—you are unlikely to have the resources to conduct batch testing, hire lawyers and expert witnesses, and go through the full hearing and appeals process. This is precisely why “prevention in advance” is far more important for amateur athletes than for professional athletes. Professional athletes have medical teams and legal resources behind them; you do not.

7. Why Ban It? Four Levels of Justification, and Four Counter-Arguments

The reasons for the system’s existence are worth understanding seriously, because they shape how you view the boundaries of your own conduct.

Arguments in Favor of Regulation

Health. This is the least controversial layer. Many performance-enhancing methods have very steep side-effect curves: the cardiovascular, hepatic, endocrine, and psychiatric effects of long-term, high-dose anabolic agents; the increased blood viscosity and thrombotic risk from artificially raising hematocrit; and the infections and organ damage from self-injection without medical supervision. The spirit of competitive sport should not include “trading health for results.”

Fairness. The meaning of competitive sport rests on the premise that “everyone competes under the same set of rules.” If one group can gain an advantage through pharmacological means, the comparison becomes meaningless. The key point at this level is not “how bad the drugs themselves are,” but that “the rules have been broken”—just as cycling races prohibit drafting behind vehicles or taking shortcuts, not because those actions are harmful to health, but because they undermine the basis of fair comparison.

Freedom from coercion. This layer is the most often overlooked, but perhaps the most important. If doping were tacitly tolerated within a sport, then those who do not dope would be forced to choose between “doping” and “quitting.” The substantive function of the ban is to protect those who do not want to dope so that they can still compete. This is also why many athletes who were once involved, in retrospect, describe the environment at the time as a collective pressure rather than a purely individual choice. From this perspective, the anti-doping system actually protects “those who follow the rules.”

The demonstration effect. The behavior of elite athletes trickles down. When young people and amateur enthusiasts come to believe that “any result worth showing is achieved through drugs,” the social meaning of sport is eroded; more directly, young people without medical supervision begin to imitate, and they have no professional support to manage the side effects.

Common Counter-Arguments

The system also faces serious criticism, presented here in a neutral manner:

• The “spirit of sport” criterion is too vague. The third of the three criteria is not a scientific judgment but a value judgment, leading some to argue that it grants regulatory bodies excessive discretion and makes it difficult to effectively scrutinize in litigation.
• The line between regulation and technological enhancement is unclear. Altitude training, hypoxic tents, compression recovery, cold therapy, sophisticated nutrition and sleep management, wind-tunnel testing, and custom framesets all use technology to enhance performance and are all equally influenced by available resources. Why are these allowed and those not? The system’s answer typically falls back on “health risks” and “whether it belongs to the training process of the sport itself,” but this line is indeed not a clean cut, and boundary cases will continue to arise.
• Privacy and proportionality. The whereabouts system requires athletes to disclose their daily schedules and locations over long periods—an intensity of intrusion that is hard to imagine in other professional fields. Supporters argue this is a necessary condition for the effectiveness of out-of-competition testing; critics argue the cost is too high and falls disproportionately on female athletes and those with caregiving responsibilities.
• Inequality of resources. Testing density, educational resources, and accessibility of TUE applications vary greatly between countries. This means that “the same set of rules” in practice does not necessarily equal “the same circumstances”: athletes in resource-rich regions can more easily obtain accurate information and legitimate medical pathways, while athletes in resource-poor regions are more likely to stumble into violations through ignorance.

Understanding these controversies is not about finding excuses to evade the rules, but about making mature judgments within the framework of the system: identifying which things are hard red lines (never touch), which are gray areas requiring advance verification (proactively check), and which are actually safe (no need to worry). Treating everything as a red line will paralyze you; treating everything as a gray area will get you into trouble.

8. Why Amateur Athletes Cannot Escape: Five Real Points of Contact

“I’m just a weekend rider; this has nothing to do with me”—this statement fails in the following five scenarios.

1. Amateur and age-group events with doping control. International amateur road race series, world age-group championships, and national games in various countries may all enforce doping control. The entry consent form you sign at registration typically includes a clause accepting testing. The moment you sign, you have entered the scope of the system. Many people sign without reading it; that will not serve as a defense.

2. Race result certification and awards. Even without on-site doping control, event regulations often stipulate that athletes must not use prohibited substances, with violations resulting in disqualification and forfeiture of awards. This is a contractual-level constraint that does not require an international organization to intervene.

3. Your coach or teammates. If you are on a team and a support personnel member becomes involved in an ADRV, the provisions of Articles 9 and 10 may implicate you. In particular, “prohibited association with sanctioned persons”—maintaining a professional working relationship with support personnel currently serving a suspension—can itself constitute a violation. This means that doing a bit of background checking when choosing a coach or training camp is worthwhile.

4. You might move up one day. It is not uncommon for amateur athletes to transition to registered athlete status, or to improve enough to be selected for a national team. At that point, your doping history, supplement usage habits, and whether you have a habit of “keeping records” will suddenly become important. Trying to reconstruct the documentation retroactively usually fails.

5. Your health itself. This point has nothing to do with eligibility. Many “performance-enhancing” products circulating online, in gyms, and through social media DMs have incomplete ingredient labeling and opaque origins. Their risks do not diminish simply because you are an amateur enthusiast—on the contrary, because you do not have a team physician conducting regular blood and endocrine monitoring, those risks are even less likely to be detected early.

9. Gray Areas Specific to Amateur Settings

There are several gray areas worth addressing separately, because they are quite common in Taiwan’s cycling culture.

Online leaderboards and KOMs. Segment records and virtual race rankings on various cycling platforms are mostly not subject to any anti-doping rules. This is institutionally true, but it raises a question worth considering: when a community’s sense of value is highly attached to numerical rankings, and those numbers have absolutely no verification mechanism, how should the community view the meaning of “results”? There is no standard answer to this question, but it is worth thinking through clearly for anyone who invests significant time in it—whether what you are chasing is the number itself, or the ability that the number represents.

The dual nature of “doctor-prescribed medication.” A prescription issued by a qualified physician based on a diagnosis is medically legitimate, but it is not necessarily safe in terms of sporting eligibility. These two things must be understood separately. Physicians have no obligation—and usually no means—to know that you are bound by an anti-doping rule, and clinic hours do not allow them to cross-check lists one by one. Proactively disclosing your athlete status is the athlete’s responsibility, not the physician’s.

Dietary supplements and “pre-race补给 packs.” This area carries the highest risk and will be addressed in a dedicated article later. For now, only one principle needs to be stated: an ingredient not listed on the label does not mean it is not in the product. In most countries, dietary supplements are regulated less strictly than pharmaceuticals, and both cross-contamination (different products produced sequentially on the same production line) and deliberate adulteration (adding pharmaceutical ingredients without labeling, to make consumers “feel the effect”) genuinely exist.

“Nobody’s going to test me anyway.” This is the most honest but also the most dangerous way of thinking. It reduces the entire matter to a “probability-of-risk calculation” while completely excluding the dimensions of health and self-consistency. If your answer truly comes down to “I won’t get caught,” then what actually needs to be addressed may not be a rules issue, but rather what has changed in your relationship with the sport. Most people started riding not to surpass strangers on a leaderboard nobody cares about.

10. Specific Reminders for the Taiwan Context

Medication discrepancies when competing abroad. The approved ingredients of over-the-counter drugs vary from country to country; the same brand name may be an entirely different formulation in a different country. The ingredient risk of “cold medicine,” “energy drinks,” or “muscle pain sprays” bought at a foreign pharmacy cannot be inferred from domestic experience. Before competing abroad, bringing your usual medications with you and keeping the packaging and package inserts is far safer than buying them locally on arrival.

Traditional Chinese medicine and compound preparations. The ingredient complexity of traditional herbs and compound preparations is far greater than that of single-ingredient Western drugs. Some botanical ingredients naturally contain substances in prohibited classes, and some animal-based ingredients may contain growth-factor-like substances. This area is very difficult to assess and must be evaluated with the help of a TCM practitioner or pharmacist who understands your status—you cannot simply compare things online yourself. Terms like “natural,” “traditional,” “medicinal cuisine,” and “tonic” carry no exemption whatsoever under the rules.

Coverage limitations of lookup tools. Internationally, there are drug lookup databases operated by anti-doping organizations that allow you to check the in-competition/out-of-competition status of specific medications. However, these tools typically only cover medications approved in the specific countries participating in the program, and products bought at a Taiwanese pharmacy may not be found. Not finding it does not mean it is safe. In such cases, it is even more important to bring the actual packaging to a pharmacist and ask them to help cross-reference the ingredients.

Domestic governing authority. Taiwan has a national-level organization responsible for doping control, handling testing, education, and therapeutic use exemptions. It is recommended to contact that organization directly, or your affiliated national federation, to confirm the current official contact window and procedures, because the organization’s name, website, and workflows may change over time, and citing outdated information is itself risky. If your team or federation has a designated contact person, that is usually the fastest and most reliable first point of contact.

Interaction between climate and medication. Taiwan’s summer heat and humidity already place a burden on fluid balance and the kidneys during long rides. Certain medications affect sweating, thermoregulation, or renal blood flow, and the risk is amplified in such conditions. This is one of the reasons why “consulting a physician before taking medication and explaining your sport type and environment” matters—not just for eligibility, but for safety.

11. Summary of Common Misconceptions

12. Turning It into Manageable Habits

For amateur athletes, anti-doping can practically be condensed into a few habits that require little effort but are effective over the long term.

Build the reflex to “ask before taking.” Whether it is for a cold, allergies, a skin issue, post-surgical pain, or a chronic condition, before taking or using anything, let your doctor or pharmacist know that you are an athlete, may be bound by anti-doping rules, and ask whether there are any ingredients to watch out for or alternatives available. Saying this sentence is not hard; remembering to say it is. Write it in your phone notes, on your NHI card holder, or in your wallet.

Keep records. Retain consultation records, prescriptions, medication bags, product photos and batch numbers of supplements, and purchase receipts. These are useless on a daily basis, but if something goes wrong, they are your only source of evidence. Photographing them and storing them in the cloud costs almost nothing, but it may be the only thing you can produce in the future.

Adopt a “presumed guilty” stance toward supplements. For nutrients that can be obtained from ordinary food, get them from food. When supplementation is truly needed, prioritize products backed by independent third-party batch testing programs, and keep the proof for that batch. Even then, the risk is only reduced, not eliminated—no testing program can guarantee 100%.

Refresh your knowledge once a year. The Prohibited List is typically revised periodically and takes effect on a specific date. If you regularly participate in events with doping control, put “review the official list and explanations once a year” on your calendar, just like reviewing your insurance policy annually.

Never hold or deliver any medication for someone else. Possession itself constitutes a violation in certain circumstances, and a well-intentioned favor could land you in violations 6, 7, or 8. This rule has no exceptions, even if the other person is a teammate, coach, or family member.

Foster an atmosphere within the team where questions are welcome. The most common point of failure in anti-doping education is athletes being afraid to ask. Whether someone on the team is using something, or someone has been pitched a product, whether it can be openly discussed often determines the team’s overall risk level. A team where “asking gets you laughed at” is usually also the team with the highest chance of getting caught.

Key Takeaways

1. The core of anti-doping is not a blacklist of banned substances, but a classification system based on “two of three criteria” plus a catch-all clause, along with a full set of procedural and responsibility allocation rules.
2. The list is divided into always prohibited (S0–S5, M1–M3), prohibited in-competition only (S6–S9), and specific sports (P1); “in-competition” has an institutionally defined time window that may cover the day before an event.
3. Not only substances are banned, but also methods: blood manipulation, sample tampering, restricted intravenous infusions, and gene and cellular-level interventions.
4. There are approximately eleven types of ADRVs, and a positive sample is only one of them; use, possession, trafficking, complicity, and procedural interference can each stand independently, and the scope of application covers coaches and support personnel.
5. Under the strict liability principle, an anti-doping rule violation does not require proof of intent; however, sanctions can be adjusted based on evidence of contamination sources and demonstrated due diligence—for amateur athletes with limited resources, prevention in advance is far more practical than defense afterward.
6. The rationale for regulation includes health, fairness, freedom from coercion, and the example effect; the system does face serious criticism regarding the vagueness of the spirit-of-sport criterion, privacy intrusion, and resource inequality, which deserve a neutral understanding.
7. Five points of contact for amateur athletes: age-group and amateur events with doping controls, contractual obligations under event regulations, coaches and teammates, potential future upgrades, and health itself.
8. Six actionable habits: proactively disclose athlete status before taking any medication, keep records, presume supplements are contaminated, update knowledge annually, never handle others’ medications, and foster a team atmosphere where questions can be asked openly.

One final emphasis: this article explains institutional concepts and does not replace official regulatory texts, nor does it constitute any medical or medication advice. For the specific status of substances, determination conditions, application procedures, and sanction criteria, always refer to the latest official announcements from WADA, UCI, and your national anti-doping organization; for any medication decision, consult a physician or pharmacist first and proactively disclose your athlete status.

Related Reading

• Banned Substances and Sport: The Science of Anti-Doping and How to Protect Yourself with Clean Supplements
• UCI Suspension System Explained: Case Analysis of Drug Violations, Race Manipulation, and Equipment Violations
• How Does Doping Control Work? A Complete Breakdown from In-Competition Sample Collection, Out-of-Competition No-Notice Testing to the Whereabouts System
• The Doping Risks Amateur Athletes Most Easily Overlook: Five Blind Spots in Cold Medicine, Supplement Contamination, and Traditional Chinese Medicine