Telmisartan
Telmisartan is a medication used to reduce high blood pressure. By acting on specific receptors, it relaxes blood vessels to improve circulation. Micardis and Micardis HCT are available as two formulations. Whether you are managing chronic heart issues or related vascular conditions, knowing your options is the first step toward better health.

Micardis HCT
Hypertension
40/12.5 · 80/12.5mg
Micardis HCT pairs telmisartan with hydrochlorothiazide in 40/12.5mg and 80/12.5mg tablets for hypertension, a sartan with a thiazide diuretic.
Key points
- An angiotensin II receptor blocker that keeps blood vessels relaxed by preventing this hormone from causing constriction.
- Available as a single-ingredient tablet or in combination formulations combining more than one active ingredient.
- Potassium levels can fluctuate during treatment and sometimes need monitoring, particularly alongside potassium supplements or lithium.
What is Telmisartan?
Telmisartan belongs to a class of medication known as angiotensin II receptor blockers (ARBs). It is primarily used to manage blood pressure by preventing a specific hormone from narrowing the blood vessels. Because the muscles surrounding these vessels remain relaxed, the heart does not need to work as hard to pump blood throughout the body.
Several formulations exist under different brand names, such as Tolucombi, to provide options for various dosage requirements. While the originator brands like Micardis set the standard for efficacy, generic versions allow accessibility to the same active compound.
What Telmisartan is used for
This medication addresses issues associated with Hypertension, a condition where blood pressure remains consistently elevated. By maintaining lower blood pressure ranges, it helps reduce the long-term strain on the cardiovascular system. It is also a treatment option for Essential Hypertension, the most common form of high blood pressure that has no identifiable underlying cause.
How does Telmisartan work?
The medication blocks a hormone called angiotensin II. In a typical physiological state, this hormone binds to receptors in the blood vessels, causing them to tighten and constrict. By blocking these receptors, Telmisartan prevents this constriction. The result is wider, more relaxed vessels that facilitate lower blood pressure levels.
Telmisartan brands and forms
Medical providers often choose between specific brands based on the desired concentration of the active ingredient and additional components. You may see options for both single-ingredient preparations and combination products. Browse our Heart & Blood Pressure category to see how these formulations compare. The most common form available is the tablet.
Safety overview for Telmisartan
What to check before using this medicine
Prior to starting, review your medical history with a professional, especially if you have known kidney or liver impairment. Be aware of any previous allergic reactions to ARBs or similar blood pressure medications.
Possible reactions and tolerability
Common responses can include dizziness when standing up quickly, back pain, or sinus congestion. High blood pressure medications can sometimes cause potassium levels to fluctuate, which the body typically regulates on its own but may require monitoring in certain patients.
Interactions and health factors
Other medications, including potassium supplements and lithium, may interact with this compound. Your lifestyle factors, such as salt intake and daily physical activity, also influence how effectively this medicine helps manage your blood pressure. Product labelling and verified clinical sources remain the correct references for specific contraindications, interactions and reactions.
Further reading
What is telmisartan used for?
Telmisartan is used to reduce high blood pressure, including essential hypertension, the most common form of high blood pressure with no identifiable underlying cause. Keeping blood pressure lower helps reduce long term strain on the cardiovascular system.
How does telmisartan work?
Telmisartan is an angiotensin II receptor blocker. It stops the hormone angiotensin II from binding to receptors in the blood vessels, so the vessels stay relaxed and blood pressure falls.
How long does telmisartan take to work?
Telmisartan starts working within about 1 to 2 hours, and its effect lasts around 24 hours.
What are the side effects of telmisartan?
Common responses can include dizziness when standing up quickly, fatigue and back pain. More serious reactions such as angioedema need immediate medical attention, so speak to a doctor or pharmacist if you notice anything unusual.
Can telmisartan be taken with other medicines?
Telmisartan can interact with other medicines, including potassium supplements, lithium, potassium sparing diuretics and aliskiren. Check with a doctor or pharmacist before combining it with anything else.
Who should not take telmisartan?
Telmisartan is not suitable for people with severe liver impairment or biliary obstruction, or during pregnancy, and it should not be combined with aliskiren in patients with diabetes. Discuss your medical history with a professional first.
What telmisartan products are available?
Products containing telmisartan include Micardis and Micardis HCT. Compare forms, strengths and packs in the listings above.
What are other names for telmisartan?
Besides the products listed here, telmisartan is sold under brand names such as Tolucombi. Names differ from country to country, so the active ingredient is the surest way to compare.
Do I need a prescription for telmisartan in Thailand?
No. In Thailand telmisartan is sold by pharmacists without a prescription, and Yasabai does not ask for one either. We are an online store, not a dispensing pharmacy; we arrange your order and delivery on your behalf.
Ordering without a prescription →Where can I buy telmisartan online?
Our pharmacy partners ship from India to Thailand and across Asia in discreet packaging. Standard Airmail takes up to 3 weeks; Express Tracked Courier takes up to 1 week.
How ordering works →Related articles

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