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CHLORTHALIDONE+TELMISARTAN belongs to the class of anti-hypertensives primarily taken to treat hypertension (high blood pressure). Hypertension or high blood pressure is a life-long or chronic condition in which the blood pressure against the artery wall becomes too high. It can lead to the risk of heart diseases, like heart attack and stroke.

CHLORTHALIDONE+TELMISARTAN is a combination of Telmisartan (angiotensin II receptor antagonist) and Chlorthalidone (thiazide diuretic or water pill). Telmisartan is an angiotensin receptor blocker that helps to relax and widen the blood vessels (arteries). Chlorthalidone is a diuretic that prevents absorption of excess salt in the body, preventing fluid retention. Together it lowers blood pressure and prevents the risk of any future stroke, heart attack, and oedema (fluid retention).

You can take CHLORTHALIDONE+TELMISARTAN with food or an empty stomach. It should be swallowed whole with a glass of water. Your doctor will advise you on how often you take your tablets based on your medical condition. In some cases, you may experience dizziness, feeling tired, skin ulcers, diarrhoea, nausea diarrhoea, back pain, and cold/flu symptoms. Most of these side effects of CHLORTHALIDONE+TELMISARTAN do not require medical attention and gradually resolve over time. However, if the side effects are persistent, reach out to your doctor.

Do not use potassium supplements or salt substitutes unless the doctor has told you. In rare cases, CHLORTHALIDONE+TELMISARTAN can cause a condition that results in a skeletal muscle problem, leading to further kidney failure. If you notice unexplained muscle pain, dark colour urine, tenderness, or weakness, especially if you also have a fever or unexplained tiredness, immediately contact the doctor. If you suspect pregnancy while taking CHLORTHALIDONE+TELMISARTAN, tell your doctor right away. CHLORTHALIDONE+TELMISARTAN should not be taken if you are breastfeeding as CHLORTHALIDONE+TELMISARTAN can pass into breast milk, so before starting CHLORTHALIDONE+TELMISARTAN, you need to stop nursing or do not take CHLORTHALIDONE+TELMISARTAN while breastfeeding. Besides this, you should not use the CHLORTHALIDONE+TELMISARTAN if you are unable to urinate. If you have diabetes, do not use CHLORTHALIDONE+TELMISARTAN with any medication that contains aliskiren (a blood pressure medicine). Before taking CHLORTHALIDONE+TELMISARTAN, tell your doctor if you have ever had liver disease, kidney failure, glaucoma (increased eye pressure), high or low levels of magnesium or potassium in your blood, have allergies or asthma, lupus (an autoimmune disease), diabetes, or an allergy to penicillin or sulfa drugs.


Hypertension (high blood pressure)

Medicinal Benefits

CHLORTHALIDONE+TELMISARTAN belongs to the class of anti-hypertensives primarily taken to treat hypertension (high blood pressure). CHLORTHALIDONE+TELMISARTAN is a combination of Telmisartan (angiotensin II receptor antagonist) and Chlorthalidone (thiazide diuretic or water pill). CHLORTHALIDONE+TELMISARTAN works by relaxing and widening the blood vessels (arteries), making the heart more efficient at pumping blood throughout the body. It helps to lower high blood pressure, thus reduces the chances of future heart attack and stroke. Besides this, it prevents excessive water and electrolytes (like sodium, potassium, etc.) from the body through urine which can otherwise raise high blood pressure. In addition to this, CHLORTHALIDONE+TELMISARTAN also reduces the future risk of any stroke or heart attack.

Directions for Use

Take CHLORTHALIDONE+TELMISARTAN as advised by the doctor. Swallow it as a whole with a glass of water. Do not break, crush or chew it.


Store in a cool and dry place away from sunlight


  • Dizziness
  • Feeling tired
  • Nausea
  • Skin ulcers
  • Diarrhoea
  • Back pain
  • Cold/flu symptoms

In-Depth Precautions and Warning

Drug Warnings

CHLORTHALIDONE+TELMISARTAN should not be given to the people allergic to CHLORTHALIDONE+TELMISARTAN or any of its ingredients, have low blood pressure (less than 90 mm of Hg), have had a heart attack, kidney disease, liver disease, pregnant women, or planning to get pregnant and breastfeeding women. It should be used with caution in patients who have diabetes. Besides this, it is contraindicated in low blood pressure (hypotension), cardiogenic shock (sudden stopping of blood flow to the heart), and aortic stenosis (heart valve problem). CHLORTHALIDONE+TELMISARTAN can pass into breast milk, so before starting CHLORTHALIDONE+TELMISARTAN, either you need to stop nursing, or you should not take CHLORTHALIDONE+TELMISARTAN while breastfeeding. If you have anuria (non-passage of urine), please do not take CHLORTHALIDONE+TELMISARTAN as it is contra-indicated in it and may lead to further complications.

Drug Interactions

Drug-Drug interaction: This medicine may have an interaction with medicines used to treat mood disorders (lithium), medicines used to treat heart disorders (digoxin), blood thinner (aspirin), antidiabetic medicines (metformin, insulin), medicines used to treat erectile dysfunction (sildenafil), medicines used to lower cholesterol levels (such as simvastatin), immunosuppressants (cyclosporine), and other anti-hypertensive medicines (atenolol, aliskiren, enalapril, lisinopril, ramipril, metoprolol), and NSAIDs (ibuprofen).

Drug-Food Interaction: CHLORTHALIDONE+TELMISARTAN may interact with high potassium-containing food and drinks. So, if you are using any of the OTC items, please tell your doctor. Also, alcohol should not be consumed while taking CHLORTHALIDONE+TELMISARTAN.

Drug-Disease Interaction: The efficacy of CHLORTHALIDONE+TELMISARTAN is affected, and the disease condition may even worsen if taken in patients with a recent or history of heart attack, low blood pressure, low potassium level, low electrolytes (sodium, potassium, calcium, etc.), anuria (non-passage of urine), angioedema (an allergic condition with swelling under the skin), lupus (an autoimmune disease), kidney disease, liver disease, asthma, diabetes.

Drug-Drug Interactions Checker List:

  • Safety Advice

    • Safety Warning



      You are recommended not to consume alcohol and CHLORTHALIDONE+TELMISARTAN to avoid unpleasant side effects like drowsiness, dizziness, and liver damage.

    • Safety Warning



      CHLORTHALIDONE+TELMISARTAN is not recommended during pregnancy as it is a category D pregnancy drug. This medicine may cause fetal damage and can affect the unborn baby (fetus).

    • Safety Warning

      Breast Feeding


      CHLORTHALIDONE+TELMISARTAN is known to pass breast milk, but its effect on the baby is not known. So, before breastfeeding, let your doctor know about this. Either you need to stop breastfeeding for using CHLORTHALIDONE+TELMISARTAN, or you need to stop takingCHLORTHALIDONE+TELMISARTAN.

    • Safety Warning



      Drive with caution, CHLORTHALIDONE+TELMISARTAN usually causes drowsiness and affects driving ability.

    • Safety Warning



      CHLORTHALIDONE+TELMISARTAN to be taken with caution, especially if you have had a history of liver disease. Your doctor will have to change the dosage depending on your medical condition and your reaction to treatment.

    • Safety Warning



      Not recommended in patients with chronic kidney disease (severe renal impairment). Safety and effectiveness in patients with severe renal impairment have not been established.

    • Safety Warning



      Efficacy and safety of CHLORTHALIDONE+TELMISARTAN have not been established in children. If prescribed, it should be strictly under medical supervision and only if the benefits overweight the harms.

    Habit Forming


    Diet & Lifestyle Advise

    • Keep your weight under control with a BMI of 19.5-24.9.
    • Do regular physical activity or exercise for at least 150 minutes per week, or about 30 minutes most days of the week. Doing this can help you to lower your raised blood pressure by about 5 mm of Hg.
    • Limit intake of sodium chloride (table salt) in your daily diet to 2300 mg per day or less than 1500 mg is ideal for most adults.
    • If you are taking alcohol, then only one serving for women and two servings is advisable.
    • Quitting smoking is the best strategy to lower the risk of heart disease.
    • Avoid chronic stress as it can raise your blood pressure. Try to enjoy and spent time with your loved ones to cope with stress and practice mindfulness techniques.
    • Monitor your blood pressure daily and if there is too much fluctuation, then immediately contact your doctor.
    • Try to include heart-healthy omega-3 fatty acids containing food drinks in your daily diet. You can also use low-fat cooking oil like olive oil, soybean oil, canola oil, and coconut oil to lower your elevated blood pressure.

    Special Advise

    • Regularly monitor blood pressure levels to prevent hypotension (low blood pressure).
    • Get up slowly while rising from lying or sitting position as CHLORTHALIDONE+TELMISARTAN may cause dizziness.

    Patients Concern

    Disease/Condition Glossary

    Hypertension: It is a chronic condition when blood pressure is too high. This condition can lead to hardened arteries (blood vessels), decreasing the blood and oxygen flow to the heart. Blood pressure is the measurement of the force that our heart uses to pump blood to all parts of the body. Raised blood pressure can cause chest pain (angina) and heart attack (when blood supply to the heart is blocked). Additionally, high blood pressure also causes brain damage (stroke) and kidney failure. High blood pressure can be diagnosed with the help of a blood pressure monitor or sphygmomanometer. Systolic pressure is the pressure when the heart pumps blood out. On the other hand, diastolic pressure is when your heart is at the resting stage between heartbeats. If your blood pressure is 140/90 mm of Hg, it means the systolic pressure is 140 mm of Hg, and diastolic pressure is 90 mm of Hg. Ideal blood pressure should be between 90/60 mm of Hg and 120/80 mm of Hg.


    Can I stop taking CHLORTHALIDONE+TELMISARTAN when my blood pressure is under control?

    No, you are advised to inform your doctor and monitor your blood pressure for at least two weeks before stopping the medicine. Depending upon your current blood pressure readings, there is a possibility your doctor may lower your medicine dosage and not recommend discontinuing it.

    For how long can CHLORTHALIDONE+TELMISARTAN be taken?

    CHLORTHALIDONE+TELMISARTAN can be safely taken as long as your doctor has prescribed it to you. Conditions such as high blood pressure are life-long conditions, and one should not abruptly discontinue it without discussing it with a doctor.

    Can I take CHLORTHALIDONE+TELMISARTAN in pregnancy?

    It is not recommended to take CHLORTHALIDONE+TELMISARTAN if you are pregnant as it can cause damage to the unborn baby (may lead to fetal toxicity). It contains telmisartan, a category D pregnancy drug, and it is harmful to the baby.

    Can use of CHLORTHALIDONE+TELMISARTAN cause dizziness?

    Yes, CHLORTHALIDONE+TELMISARTAN can cause dizziness. It is advised to avoid driving or operate any heavy machinery while taking CHLORTHALIDONE+TELMISARTAN. In case you feel dizzy or lightheaded, it is advised to rest for some time until you feel better.

    Are there any specific contraindications associated with CHLORTHALIDONE+TELMISARTAN?

    You should not take CHLORTHALIDONE+TELMISARTAN if you have ever had liver disease, kidney failure, glaucoma, high or low levels of magnesium or potassium in your blood, have allergies or asthma, lupus (an autoimmune disease), diabetes, or allergic to penicillin or sulfa drugs, anuria (reduction or absence of urine) and pregnant women in their second or third trimesters. Besides this, avoid using CHLORTHALIDONE+TELMISARTAN (in case of diabetes) with aliskiren (a blood pressure medicine) as it can lead to a life-threatening condition.

    What should I do if I miss a dose of CHLORTHALIDONE+TELMISARTAN?

    In case you have missed a dose of CHLORTHALIDONE+TELMISARTAN, you are advised to take it as soon as you remember. However, try not to miss a dose in the first place; if it's time for you to take your next dose, then do not take both doses together. Take only one dose; taking a double dose of CHLORTHALIDONE+TELMISARTAN will lead to low blood pressure.

    Can CHLORTHALIDONE+TELMISARTAN cause increased blood potassium level?

    Yes, prolonged intake of CHLORTHALIDONE+TELMISARTAN can cause an increase in blood potassium level. So, patients taking CHLORTHALIDONE+TELMISARTAN should avoid taking supplements and food rich in potassium to avoid any unpleasant side-effect.

    Can CHLORTHALIDONE+TELMISARTAN effect fertility or sex life?

    CHLORTHALIDONE+TELMISARTAN contains a diuretic (chlorthalidone) which may affect a man's ability to maintain or gain an erection (erectile dysfunction). However, if you have any problem, you can consult your doctor, and accordingly, your medicine can be changed as other blood pressure-lowering medication does not affect erection.

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