chemistry

Trimetazidine

Trimetazidine is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Trimetazidine rather than just read about it. In short: Trimetazidine (IUPAC: 1-(2,3,4-trimethoxybenzyl)piperazine) is a drug used in the treatment of angina pectoris, a condition characterized by chest pain due to reduced blood flow to the heart. Developed and first marketed by Laboratoires Servier (France), it is described as the first cytoprotective anti-ischemic agent.

Key takeaways

Trimetazidine belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Trimetazidine to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Trimetazidine from memory before moving on to harder problems.

Reference excerpt

Trimetazidine (IUPAC: 1-(2,3,4-trimethoxybenzyl)piperazine) is a drug used in the treatment of angina pectoris, a condition characterized by chest pain due to reduced blood flow to the heart. Developed and first marketed by Laboratoires Servier (France), it is described as the first cytoprotective anti-ischemic agent. Trimetazidine is an antianginal metabolic drug of the fatty acid oxidation inhibitor class; it shifts cardiac energy metabolism from fatty acid utilization toward glucose oxidation, thereby improving the efficiency of energy production in ischemic conditions. The drug has also become controversial as a performance-enhancing drug, with multiple doping scandals linked to its use at successive Olympic Games.

Medical uses Trimetazidine is prescribed primarily as a long-term treatment for angina pectoris. In some countries, including France, it has also been used for tinnitus and dizziness. The drug is typically administered twice daily. In 2012, the European Medicines Agency (EMA) completed a review of its benefits and risks and recommended restricting trimetazidine-containing medicines to use only as an add-on therapy for angina pectoris when first-line antianginal agents are insufficient or not tolerated. Controlled studies in patients with angina have shown that trimetazidine increases coronary flow reserve, delays the onset of exercise-induced ischemia, stabilizes blood pressure without significantly affecting heart rate, reduces the frequency of angina attacks, and decreases the need for symptomatic nitrate use. Trimetazidine has also been reported to improve left ventricular function in patients with coronary heart disease and diabetes. As of 2023, it is under investigation for the treatment of bipolar depression. Testing to determine if it can have a positive impact on patients suffering from ALS/MND is due to begin taking place in 2026.

Use as a performance-enhancing drug Although developed for medical use in the 1970s, trimetazidine was only added to the World Anti-Doping Agency (WADA) list of prohibited substances in 2014 under the category of "hormone and metabolic modulators." Its use is prohibited at all times, both in and out of competition. In 2014, Chinese Olympic swimmer Sun Yang tested positive for trimetazidine, four months after it had been added to the banned list. He was suspended for three months by the Chinese Swimming Association. Later that year, WADA reclassified trimetazidine from a "stimulant" to a "modulator of cardiac metabolism." In 2018, U.S. swimmer Madisyn Cox tested positive for trimetazidine and was initially suspended for two years. Testing later confirmed contamination of her multivitamins, and the Court of Arbitration for Sport reduced her suspension to six months, which expired in September 2018. In 2021, 23 Chinese swimmers tested positive for trimetazidine in cases reported to WADA by the China Anti-Doping Agency. Following review in June and July 2021, WADA concluded that the threshold to open an investigation had not been met. The United States Anti-Doping Agency (USADA) had raised concerns in 2020 and again in 2023 about possible cover-ups, but these allegations were deemed unsubstantiated. In February 2022, the medal ceremony for the Olympic figure skating team event, scheduled for 8 February, was delayed after what International Olympic Committee (IOC) spokesperson Mark Adams described as a matter requiring "legal consultation" with the International Skating Union (ISU). Media reports later revealed the issue concerned a positive December 2021 test for trimetazidine by Russian skater Kamila Valieva, which was publicly disclosed on 11 February. Valieva was cleared by the Russian Anti-Doping Agency (RUSADA) on 9 February, but the IOC, WADA, and ISU appealed the decision. On 14 February, the Court of Arbitration for Sport ruled that Valieva could compete in the women's singles, citing her age and the potential for "irreparable harm," though her team-event gold medal remained under review. The IOC confirmed that the medal ceremony would not take place until the investigation concluded. Besides trimetazidine, Valieva declared using hypoxen and L-carnitine, neither of which is banned. However, experts noted that the combination with trimetazidine could indicate an attempt to enhance endurance and reduce fatigue. Lawrence Cherono, winner of several major marathons, tested positive for trimetazidine and was suspended one day before the 2022 World Athletics Championships. In September 2024, Iga Świątek, then the world's top-ranked women's tennis player, tested positive for trimetazidine and received a one-month provisional suspension after accepting a ruling of "No Significant Fault or Negligence," linked to a contaminated melatonin supplement. WADA later announced it would not pursue the case further, describing the explanation as "plausible".

… excerpt ends here. Continue reading the full article.

Illustrations

Worked examples

Example 1 — a first encounter with Trimetazidine

Start with the simplest possible case. Write down what Trimetazidine claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Trimetazidine before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Trimetazidine ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Trimetazidine

In research: Trimetazidine appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Trimetazidine in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Trimetazidine is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1-Piperazinyl compounds, Antianginals, Benzylpiperazines, so understanding it makes those chapters shorter.
In everyday life: Look for Trimetazidine outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Trimetazidine in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Trimetazidine means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Trimetazidine out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Trimetazidine in simple terms?

Why does Trimetazidine matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Trimetazidine?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Trimetazidine.