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compositionComposition:HYDROCHLOROTHIAZIDE-12.5MG+OLMESARTAN-20MG
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Prescription Medicine
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Olmat H Tablet 15's is used to lower high blood pressure (hypertension). It contains Olmesartan and Hydrochlorothiazide, which works by relaxing and widening the narrowed blood vessels. This allows the blood to flow more smoothly in the blood vessels, and the heart can pump more efficiently. Also, it works by removing extra water/fluid and certain electrolytes overload from the body. Thus, it lowers the fluid overload, raised blood pressure, improves blood flow, and reduce the future risk of a heart attack and stroke. In some cases, it may cause side effects such as nausea, upset stomach, dehydration, headache, diarrhoea, electrolyte imbalance, dizziness, and decreased blood pressure. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.

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Written By Lakshmithulasi Yarragunta , PharmD (PB)
Reviewed By Dr Aneela Siddabathuni , MPharma., PhD
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More about the Product

Composition :

HYDROCHLOROTHIAZIDE-12.5MG+OLMESARTAN-20MG

Manufacturer/Marketer :

Micro Labs Ltd

Consume Type :

Oral

Expires on or after :

Dec-28

Return Policy :

Not Returnable

About Olmat H Tablet 15's

Olmat H Tablet 15's is a prescription tablet used to treat high blood pressure (hypertension). It is typically prescribed when a single medication is not enough to control your blood pressure. Lowering high blood pressure helps prevent serious cardiovascular events like strokes and heart attacks.

For best results, you should take Olmat H Tablet 15's consistently at the same time every day. You can take this medication with or without food, though taking it with food may help prevent stomach upset. Incorporating a low-salt diet and regular physical activity can significantly boost the effectiveness of this treatment.

Most people tolerate Olmat H Tablet 15's well, but some may experience mild side effects such as dizziness, headaches, or temporary fatigue as their bodies adjust. However, if you experience severe symptoms like muscle weakness, a rapid heartbeat, or signs of an allergic reaction, you should seek immediate medical attention.

Talk to your doctor before taking Olmat H Tablet 15's if you have a history of kidney disease, liver damage, or diabetes. Do not take this if you are pregnant, as it can cause serious injury or death to an unborn baby.

This medication can interact with other drugs, including pain relievers and potassium supplements, which may affect how it works or increase your risk of side effects. It is also important to limit alcohol consumption while taking Olmat H Tablet 15's because alcohol can worsen dizziness and cause your blood pressure to drop too low. If you are breastfeeding or are an older adult, consult your doctor to ensure this medication is safe for you.

Uses of Olmat H Tablet 15's

Olmat H Tablet 15's is used to control high blood pressure. The detailed uses of Olmat H Tablet 15's are as follows:

  • High blood pressure (hypertension): Olmat H Tablet 15's helps relax blood vessels and reduce excess fluid in the body, which effectively lowers elevated blood pressure and reduces the heart's workload.

Key Benefits

Lowering high blood pressure is essential for long-term health, and Olmat H Tablet 15's offers significant clinical benefits. 

  • By keeping your blood pressure within a normal range, this medication helps protect your vital organs from long-term damage.
  • Taking Olmat H Tablet 15's helps reduce your risk of life-threatening events such as strokes and heart attacks.
  • It also reduces overall strain on your cardiovascular system, helping prevent heart failure.
  • Additionally, maintaining controlled blood pressure protects your kidneys from the long-term damage often caused by hypertension.

Directions for Use

  • Take Olmat H Tablet 15's exactly as prescribed by your doctor.
  • Swallow the tablet whole with a full glass of water. Do not crush, chew, or break the tablet, as this can interfere with how the medication is released into your body.
  • You can take this medicine with or without food. Try to take your dose at the same time each day, many people find it best to take it in the morning to avoid waking up during the night to urinate.
  • Always follow your doctor's exact instructions regarding how and when to take your medication.

How Olmat H Tablet 15's Works

Olmat H Tablet 15's is a combination of two active ingredients that work together in different ways to lower your blood pressure. • Olmesartan is an angiotensin receptor blocker. It works by blocking a natural substance in the body that causes blood vessels to tighten and narrow. By blocking this substance, the medicine allows your blood vessels to relax and widen, making it easier for blood to flow through them. • Hydrochlorothiazide is a diuretic, commonly known as a water pill. It helps your kidneys remove excess salt and water from your body through your urine. Reducing the overall volume of fluid circulating in your bloodstream naturally lowers the pressure inside your blood vessels. Together, these two mechanisms provide a more comprehensive blood pressure-lowering effect than either ingredient could achieve alone.
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Alcohol

Unsafe

You are recommended not to consume alcohol and Olmat H Tablet 15's to avoid unpleasant side effects like drowsiness, dizziness and liver damage.

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Pregnancy

Unsafe

Using Olmat H Tablet 15's is not recommended in pregnancy, especially in the second and third trimesters, as this medicine can harm or even cause death to the unborn baby by affecting fetal kidney development. Therefore, stop the medicine immediately and contact your doctor if you become pregnant while taking it.

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Breast Feeding

Unsafe

Olmat H Tablet 15's is known to pass breast milk, but its effect on the baby is not known. So, before breastfeeding, let your doctor know about this.

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Driving

Unsafe

Drive with caution, Olmat H Tablet 15's usually causes drowsiness and affects driving ability.

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Liver

Caution

Olmat H Tablet 15's to be taken with caution, especially if you have had a history of liver disease. Your doctor will need to adjust the dosage based on your medical condition and your response to treatment.

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Kidney

Caution

Olmat H Tablet 15's to be taken with caution, especially if you have had a history of kidney disease. Your doctor will need to adjust the dosage based on your medical condition and your response to treatment.

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Children

Consult your doctor

The efficacy and safety of Olmat H Tablet 15's have not been established in children. If prescribed, it should be strictly under medical supervision and only if the benefits outweigh the harms.

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Heart

Caution

Olmat H Tablet 15's should be taken with caution in patients with heart problems. Please inform your doctor if you have any pre-existing heart problems before using Olmat H Tablet 15's.

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Geriatrics

Caution

Olmat H Tablet 15's should be given with caution in elderly patients due to an increased risk of side effects. Seek medical advice before using Olmat H Tablet 15's.

What if I have taken an overdose of Olmat H Tablet 15's

If you suspect an overdose or have taken too much Olmat H Tablet 15's, seek immediate medical attention or contact a poison control center right away. Symptoms of an overdose may include extreme dizziness, fainting, or a rapid heart rate.

Diet & Lifestyle Advise

  • Reduce your sodium intake: High amounts of dietary salt can counteract the effects of Olmat H Tablet 15's. Limit processed foods and avoid adding extra salt to your meals.
  • Stay appropriately hydrated: Since this medication contains a water pill, it is important to drink enough water. Talk to your doctor about how much fluid you should drink daily, especially during hot weather or exercise.
  • Monitor your potassium levels: This medication can affect your blood potassium levels. Talk to your doctor before using salt substitutes or potassium supplements, as these can cause potassium levels to rise too high.
  • Engage in regular physical activity: Regular, moderate exercise, such as walking or swimming, helps naturally lower blood pressure and strengthen your heart.
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How Soon It Starts Working

  • The time required for Olmat H Tablet 15's to start to work: Olmat H Tablet 15's ideally shows its action within 2 hours after administration.
  • The time for which the effects of Olmat H Tablet 15's last: The effect of Olmat H Tablet 15's lasts for 24 hours.

What if you forget to take Olmat H Tablet 15's

If you miss a dose of Olmat H Tablet 15's, take it as soon as you remember. However, if it is almost time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take a double dose to make up for a missed one.

Storage

• Store in a cool and dry place away from sunlight. • Keep out of sight and reach of children. • Non cold chain - To be stored in cool places at 10ºC to 25ºC or below 30ºC.

Drug Warnings

  • Check the tablet carefully before taking it; do not use it if the packaging is damaged or the tablet appears damaged or discoloured.
  • Stand up slowly from a sitting or lying position to reduce the risk of dizziness, lightheadedness, or fainting.
  • Avoid driving or operating machinery until you know how Olmat H Tablet 15's affects you, as it can cause dizziness or fatigue, especially when you first start taking it.
  • Protect your skin from the sun. This medication can make your skin more sensitive to sunlight, increasing your risk of sunburn. Use sunscreen and wear protective clothing when outdoors.
  • Monitor your blood pressure at home regularly and keep a log to share with your healthcare provider during your check-ups.

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Drug-Drug Interactions:

  • NSAIDs (like ibuprofen or naproxen): Taking these pain relievers with Olmat H Tablet 15's may decrease the blood pressure-lowering effect and increase the risk of serious kidney problems.
  • Lithium: This combination can cause lithium levels in your blood to rise dangerously high, increasing the risk of lithium toxicity.
  • Other blood pressure medications: Taking other blood pressure drugs alongside Olmat H Tablet 15's can cause your blood pressure to drop too low.
  • Potassium supplements or potassium-sparing water pills: Combining these with Olmat H Tablet 15's can cause abnormally high potassium levels in your blood, which can affect your heart rhythm.

Drug-Food Interactions:

  • Alcohol: Drinking alcohol while taking this medication can excessively lower your blood pressure and worsen dizziness, lightheadedness, and the risk of fainting.

Drug-Disease Interactions:

  • Kidney or liver disease: If you have severe kidney or liver damage, Olmat H Tablet 15's may build up in your body or worsen your organ function.
  • Diabetes: This medication can affect your blood sugar control, requiring close monitoring of your glucose levels and potential adjustments to your diabetes medications.
  • Gout: The water pill component of Olmat H Tablet 15's can increase uric acid levels in your blood, potentially triggering painful gout attacks.

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Habit Forming

No

Therapeutic Class

[ANTI- HYPERTENSIVES]

FAQs

Olmat H Tablet 15's is used to lower high blood pressure (hypertension) by removing extra fluid (electrolytes) from the body.
Olmat H Tablet 15's is a combination of two medicines, namely: Olmesartan and Hydrochlorothiazide. Olmesartan is an angiotensin receptor blocker (ARB) that blocks the hormone angiotensin and relaxes blood vessels. This allows the blood to flow more smoothly in the blood vessels, and the heart can pump more efficiently. Hydrochlorothiazide (a diuretic, or water pill) removes excess water and certain electrolytes from the body. Together, both lower fluid overload and blood pressure improve blood flow and reduce the future risk of a heart attack.
Yes, Olmat H Tablet 15's can cause dizziness. It is advised to avoid driving or operating any heavy machinery while taking Olmat H Tablet 15's. If you feel dizzy or lightheaded, rest for a while until you feel better.
It is unlikely that Olmat H Tablet 15's affects fertility in men or women. However, in some cases, some water pills like hydrochlorothiazide may lead to erectile dysfunction. For the best advice, please consult your doctor.
If you have missed a dose of Olmat H Tablet 15's, take it as soon as you remember. However, try not to miss a dose in the first place. If it is time for your next dose, do not take both doses together. Take only one dose; taking a double dose of Olmat H Tablet 15's will lead to low blood pressure.
Olmat H Tablet 15's can be safely taken as long as your doctor has prescribed it to you. Conditions such as high blood pressure are lifelong conditions, and one should not abruptly discontinue them without discussing it with a doctor. Discontinuing Olmat H Tablet 15's may lead to increased blood pressure with a high risk of heart attack and stroke in the future.
No, you are advised to inform your doctor and monitor your blood pressure for at least two weeks before stopping the medicine. Depending on your current blood pressure readings, your doctor may lower your medication dose and not recommend discontinuing it.
Do not use Olmat H Tablet 15's if you are pregnant, planning for pregnancy, or unable to urinate. If you have diabetes and are taking Olmat H Tablet 15's with other blood pressure-lowering pills like 'aliskiren', immediately stop taking both together and consult a doctor.
Please inform your doctor before surgery if you are taking Olmat H Tablet 15's as it needs to be stopped because it might lower the blood pressure further if taken along with local anesthesia.
Essential hypertension is a type of high blood pressure that develops over time without a specific underlying cause. It is influenced by genetic factors, ageing, and lifestyle choices such as poor diet, lack of exercise, smoking, and excessive alcohol consumption. Other factors include obesity, stress, and family history. While the exact cause is unknown, these risk factors increase the likelihood of developing essential hypertension.
Your doctor will advise you on how often you should take Olmat H Tablet 15's based on your medical condition. Taking a double dose of Olmat H Tablet 15's can lead to low blood pressure and other potential side effects
If you are taking medication for high blood pressure, avoid high-sodium foods (processed foods, fast food, salty snacks), caffeine (coffee, energy drinks), and alcohol in excess, as they can interfere with medication and raise blood pressure. Limit foods high in saturated fats (fried foods, fatty meats, full-fat dairy), and be cautious with potassium-rich foods (bananas, oranges, spinach) if you are on certain medications like ACE inhibitors. Avoid liquorice and grapefruit, as they can affect medication effectiveness. Additionally, reduce high-sugar foods and drinks, as they can contribute to weight gain and higher blood pressure.
Olmat H Tablet 15's begins working within a few hours to lower your blood pressure, but it may take several weeks of consistent use to achieve its full therapeutic effect. Continue taking it as prescribed even if you feel well. Talk to your doctor if you have questions about your progress.
Your doctor decides the best time to take Olmat H Tablet 15's. Follow your doctor’s instructions. But try to take Olmat H Tablet 15's at the same time each day.
While using Olmat H Tablet 15's, maintain a healthy BMI (19.5–24.9) and engage in at least 150 minutes of exercise weekly to help lower blood pressure. Limit salt intake to 1500–2300 mg/day, consume alcohol in moderation (one drink for women, two for men), and quit smoking to reduce heart disease risk. Manage stress with mindfulness and quality time, monitor blood pressure regularly, and consult a doctor if fluctuations occur. Include omega-3-rich foods and use heart-healthy oils, such as olive or canola oil, in your diet.
No, Olmat H Tablet 15's is not known to cause weight gain. The diuretic effect of Hydrochlorothiazide in Olmat H Tablet 15's may lead to weight loss in some cases due to fluid loss. However, if you have any concerns, discuss them with your doctor.
Serious side effects of Olmat H Tablet 15's include kidney issues, severe allergic reactions, low blood pressure, electrolyte imbalances (weakness, irregular heartbeat), liver or pancreatic problems, dehydration, and vision changes. Seek immediate medical attention if these occur.
Store Olmat H Tablet 15's at a temperature below 30°C in a cool, dry place, as advised on the label. Protect from light and moisture. Keep it out of reach of children.
No, you should not take Olmat H Tablet 15's if you are pregnant. This medication can cause serious injury or death to an unborn baby, especially when taken during the second and third trimesters. If you plan to become pregnant or find out you are pregnant, stop taking the medication and talk to your doctor immediately.
One of the active components in Olmat H Tablet 15's is a diuretic, or water pill. It helps your body get rid of excess salt and water through your urine, which naturally lowers your blood pressure. This effect is usually most noticeable when you first start the medication. Talk to your doctor if this becomes bothersome.
Yes, your doctor will likely recommend periodic blood tests to monitor your kidney function and check electrolyte levels (such as potassium and sodium). This helps ensure the medication is working safely. Talk to your doctor to set up a monitoring schedule.
Many salt substitutes contain potassium instead of sodium. Since Olmat H Tablet 15's can affect your body's potassium levels, using these substitutes could cause them to rise dangerously high. Talk to your doctor before using any salt substitutes.

Disclaimer

While we strive to provide complete, accurate, and expert-reviewed content on our 'Platform', we make no warranties or representations and disclaim all responsibility and liability for the completeness, accuracy, or reliability of the aforementioned content. The content on our platform is for informative purposes only, and may not cover all clinical/non-clinical aspects. Reliance on any information and subsequent action or inaction is solely at the user's risk, and we do not assume any responsibility for the same. The content on the Platform should not be considered or used as a substitute for professional and qualified medical advice. Please consult your doctor for any query pertaining to medicines, tests and/or diseases, as we support, and do not replace the doctor-patient relationship.

Reference

  1. Electronic Medicines Compendium (EMC). Pil.8529 Patient Information Leaflet (PIL). Cheshire, UK: Datapharm; 2025. [Accessed on 02 Jun. 2026]Check here
  2. Drugs.com Clinical Review Team. Leaflet Clinical Drug Monograph. Auckland, NZ: Drugs.com; 2026. [Accessed on 02 Jun. 2026]Check here
  3. National Center for Biotechnology Information (NCBI). Pmc1994014 Scientific Research Publication. Bethesda, MD: NLM; 2025. [Accessed on 02 Jun. 2026]Check here
  4. Dr. Reddy’s Laboratories (UK) Ltd. Electronic Medicines Compendium (EMC). [Revised in August 2018] [Accessed on 13th December 2022]Check here
  5. Bristol Laboratories Ltd. Electronic Medicines Compendium (EMC). [Revised in August 2018] [Accessed on 13th December 2022]Check here
  6. Mylan Pharmaceuticals Inc. U.S. Food and Drug Administration. HYDROCHLOROTHIAZIDE TABLETS, USP 12.5 mg, 25 mg and 50 mg. [Revised in May 2011] [Accessed on 13th December 2022] docs/label/2011/040735s004,040770s003lbl.pdfCheck here

Country of origin

India

Manufacturer/Marketer address

No. 28 Sundar Industrial Estate,N.T.Y Layout Mysore Road , Bangalore - 560026, India
Other Info - OLM0608
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