1. How to Use and Dosage of Trimetazidine
How to Use: Trimetazidine is taken orally and should be consumed with meals to minimize the risk of stomach irritation.
Typical Dosage:
- Take 1 tablet (20mg) three times a day.
- For patients with moderate renal impairment (creatinine clearance 30 - 60 ml/min): Take 1 tablet (20mg) twice daily, in the morning and evening.
- For elderly patients: Older adults are often more sensitive to Trimetazidine due to age-related kidney function decline. It is advisable to consult a doctor to adjust the dosage accordingly for older individuals.
- For children: The safety and efficacy of Trimetazidine in patients under 18 years of age have not been clearly established. Therefore, extreme caution is needed, and it is recommended to consult a doctor before using this medication for this age group.


2. Side Effects of Trimetazidine
Trimetazidine may cause a range of side effects that vary depending on the individual. Common side effects, which may affect 1 in 10 people, include:
- Dizziness
- Headache
- Stomach pain
- Diarrhea
- Indigestion
- Nausea
- Vomiting
- Rash
- Itching
Less common side effects, affecting 1 in 1,000 people, include:
- Rapid or irregular heartbeat (palpitations)
- Low blood pressure when standing, causing dizziness, lightheadedness, or fainting
- Discomfort
- Flushing or dizziness
Additionally, Trimetazidine may cause other side effects, such as:
- Extrapyramidal symptoms: Unusual movements like tremors in the hands or fingers, twisting movements, abnormal gait, stiffness in limbs. These symptoms typically resolve after stopping treatment.
- Sleep disturbances: Drowsiness or difficulty sleeping.
- Constipation.
- Red skin rash with blisters.
- Angioedema: Swelling of the face, mouth, tongue, lips, or throat, which may cause difficulty swallowing or breathing.
- Decreased white blood cell count: Increases the risk of infections.
- Decreased platelet count: Increases the risk of bruising or bleeding.
- Liver problems.
If you experience any side effects after using Trimetazidine, whether in its extended-release tablet (35mg), film-coated tablet (20mg), or oral drop solution (20mg/ml), contact your doctor immediately for advice and timely treatment.


3. What to do if you miss a dose or overdose
In case of overdose:
- If you or someone else has taken an overdose of Trimetazidine, immediate action is required. Call emergency services at 115 or go to the nearest local healthcare center for prompt treatment. Symptoms of an overdose may include nausea, vomiting, dizziness, and severe discomfort.
In case of missed dose:
- If you miss a dose of Trimetazidine, take the missed dose as soon as possible. However, if it is almost time for the next dose, skip the missed dose and continue with the regular schedule. Do not take a double dose to make up for a missed one, as this may result in an overdose or increase the risk of side effects.
Note:
- Since Trimetazidine is typically prescribed and monitored by a doctor, pharmacist, or healthcare professional, overdose cases are rare. It is important to follow the doctor's instructions carefully and report any unusual symptoms immediately during the course of treatment.


4. Product Interactions and Storage Instructions
Product Interactions:
- Interactions with other medications: Trimetazidine may interact with other medications, altering its effectiveness or increasing the risk of side effects. These drug interactions can significantly affect the action of Trimetazidine and the medications you are currently taking. For safety, maintain a list of all medications you are using, including prescribed drugs, over-the-counter products, and supplements, and present this list to your doctor or pharmacist. Self-medicating, stopping, or changing dosages without a doctor's guidance can be dangerous and lead to serious issues.
- Interactions with food and alcohol: Taking Trimetazidine with food, alcohol, or tobacco can cause undesirable interactions. To avoid potential side effects, consult your doctor regarding the use of Trimetazidine during meals or while consuming alcohol and tobacco.
- Health conditions affecting Trimetazidine: Your current health condition may also impact how Trimetazidine works. Certain health issues can alter the drug's effectiveness or increase the likelihood of side effects. It is important to inform your doctor about any existing health conditions so they can adjust your dosage or monitor your treatment more closely.
Effectively managing product interactions and health conditions will help you use Trimetazidine safely and efficiently.
Storage Instructions:
- Storage location: Store Trimetazidine in a dry, cool place, away from direct light, moisture, and high temperatures.
- Keep out of reach of children: Always keep the product out of the reach and sight of children. Ensure that the packaging is tightly closed.
- Store at room temperature: Avoid storing the product at temperatures that are too high or low. Keep it at room temperature, between 15-30°C (59-86°F).
- Avoid moisture: Make sure the product does not become exposed to moisture. Do not store it in the bathroom or other humid areas.
- Original packaging: Keep the product in its original packaging or container to protect it from light and moisture.
- Do not use expired products: Always check the expiration date and do not use the product if it is expired. Safely dispose of expired products according to local health guidelines.
- Consult a professional: If you have any questions about how to store the product, ask your doctor or pharmacist for guidance to ensure it is stored properly.
Proper storage of Trimetazidine is crucial to maintain the product's effectiveness and safety during use.


5. Important Considerations When Using Trimetazidine
Trimetazidine, also known by the brand name Vastarel, is a widely used medication for the prevention and symptomatic treatment of angina pectoris. Here are some important considerations when using Trimetazidine:
- Regulatory changes: Under the Pharmacovigilance process, the use of Trimetazidine has been adjusted since 2012 based on the evaluation of the benefit-risk ratio. Therefore, it is essential to follow the latest guidelines from health authorities and never use the product without a doctor's recommendation.
- Indication for use: Trimetazidine is indicated for patients who are intolerant to first-line angina therapies or as an adjunctive treatment for patients with stable angina who are not adequately controlled with other treatments.
- Prescribing precautions: Caution should be exercised when prescribing to patients with moderate renal impairment, elderly patients, and dosage reductions may be necessary for these individuals to prevent unwanted side effects.
- Not for use in certain conditions: Trimetazidine should not be used in patients with Parkinson's disease or related symptoms, severe kidney problems, or any allergies to ingredients in the product.
- Managing health conditions: In patients with movement disorders such as Parkinson's syndrome, discontinuing Trimetazidine permanently should be considered. Always consult with a doctor for advice and regular monitoring of health.
Adhering to the above considerations is crucial to ensuring the safety and effectiveness of Trimetazidine. Always consult your doctor or a healthcare professional before starting or altering any treatment.


6. Trimetazidin là gì?
Trimetazidin (TMZ) là một loại dược phẩm được sử dụng chủ yếu để điều trị các tình trạng liên quan đến tim mạch, đặc biệt là đau thắt ngực. Sản phẩm hoạt động bằng cách cải thiện quá trình chuyển hóa các axit béo, giúp cơ thể sử dụng oxy hiệu quả hơn. Nhờ đó, Trimetazidin tăng cường lưu lượng máu đến tim và hạn chế sự biến đổi nhanh chóng của huyết áp, giúp giảm đau ngực do các mạch máu bị tắc nghẽn. Hơn nữa, Trimetazidin còn có khả năng cải thiện hiệu suất tổng thể ở những bệnh nhân mắc các bệnh liên quan đến tim. Trimetazidin đã được chấp thuận sử dụng trong liệu pháp điều trị đau thắt ngực tại Châu Âu, nhưng chưa được chấp thuận ở Hoa Kỳ. Điều này phản ánh sự khác biệt trong quy định và sự thận trọng của các cơ quan y tế tại các khu vực khác nhau trên thế giới.
Về khía cạnh thể thao, Cơ quan chống doping thế giới (WADA) đã cấm sử dụng Trimetazidin trong tất cả các môn thể thao kể từ năm 2014. Sản phẩm này được xếp vào nhóm “chất điều biến hormone và chuyển hóa”, nhóm sản phẩm cấm đối với vận động viên vì khả năng cải thiện chức năng tim, mang lại lợi thế không công bằng khi thi đấu. Thực tế, một số vận động viên Olympic đã bị phát hiện dương tính với Trimetazidin, cho thấy mức độ nghiêm trọng của vấn đề này trong thể thao chuyên nghiệp.
Trimetazidin được sản xuất và lưu hành trên thị trường với các dạng và hàm lượng khác nhau, bao gồm:
- Viên nén bao phim 20mg
- Dung dịch uống đếm giọt 20mg/ml, chai 60ml
- Viên nén bao phim giải phóng kéo dài (MR) 35mg
Các dạng bào chế này mang lại sự linh hoạt trong việc sử dụng và điều chỉnh liều lượng phù hợp với từng bệnh nhân và tình trạng cụ thể, đảm bảo hiệu quả điều trị tối ưu và an toàn.


7. Effects of Trimetazidine
Trimetazidine is a medication used to treat angina pectoris, primarily for patients with stable angina when other treatments have been ineffective or are not tolerated. It works by protecting heart muscle cells during ischemic events, minimizing heart damage, and improving patient conditions. However, Trimetazidine is not prescribed initially but is added to a treatment plan when other methods have not yielded the desired results.
Importantly, Trimetazidine should not be used for patients experiencing acute angina attacks, myocardial infarction, or as the first-line treatment for unstable angina. This precaution ensures patient safety in emergency situations.
In addition to treating angina, Trimetazidine has been suggested for addressing vascular issues like visual disturbances, dizziness, tinnitus, and retinal vascular damage. However, the CHMP has advised against using Trimetazidine for these purposes, as its benefits have not been conclusively proven to outweigh the potential risks.


8. Indications and Contraindications of Trimetazidine
Indications: Trimetazidine is prescribed for certain cases related to cardiovascular and circulatory issues. Specifically, the medication is used to treat ischemic heart disease and to prevent the complications of myocardial infarction, such as angina attacks. Additionally, Trimetazidine is effective in treating visual disorders caused by circulation problems and assists in alleviating symptoms like dizziness and tinnitus, often associated with vascular issues.
Contraindications: However, Trimetazidine has several key contraindications. It should not be used by individuals who are hypersensitive to any components of the product, particularly Trimetazidine itself. Patients with Parkinson's disease or those exhibiting Parkinsonian symptoms, tremors, restless leg syndrome, or similar movement disorders should avoid this product. Additionally, patients with severe renal impairment, with a creatinine clearance (Cr) below 30 ml/min, are advised against using Trimetazidine due to the risk of accumulation and side effects.


