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Thiazide 12.5mg Tablet

Hydrochlorothiazide (12.5mg)

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Thiazide 12.5mg Tablet is a diuretic (water pill) medicine used to treat hypertension (high blood pressure). This medicine reduces excess fluid levels in the body and treats edema (fluid overload) associated with heart, liver, kidney, or lung disease.

Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 29 Apr 2026 | 01:01 PM (IST)

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General Information

Contains

Hydrochlorothiazide (12.5mg)

Marketer

Ordain Health Care Global Pvt Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Thiazide 12.5mg Tablet makes you lose excess water through urine. It may be used alone or in combination with other medicines. This medicine should be taken only during day time to avoid frequent urination at night. You must take this medicine in the dose and duration as advised by the doctor and never stop it abruptly without consulting the doctor. Most people with high blood pressure do not feel ill, but if you stop taking this medicine, your condition could get worse. This may lead to your blood pressure rising up again and increase your risk of heart disease and stroke.

It is important to have your blood pressure checked regularly. This medicine is only one part of a treatment program which should also include a healthy diet, regular exercise, smoking cessation, moderation of alcohol intake and weight reduction. You can eat normally while taking this medicine, but try to reduce your salt intake.

Common side effects of this medicine include headache, nausea, dizziness, and weakness. Consult your doctor if these side effects bother you. Before taking this medicine, its better to let your doctor know if you are suffering from any kidney or liver disease. Also, pregnant women and breastfeeding mothers should consult doctor before taking it. You must inform doctor about all the other medicines that you are taking apart from this medicine. Regular monitoring of kidney function and electrolytes is important while using this medicine.

Uses of Thiazide Tablet

Hypertension (high blood pressure)

Benefits of Thiazide Tablet

Hypertension (high blood pressure)
Hypertension is a condition in which blood pressure remains consistently high, increasing the risk of heart and kidney problems. Thiazide 12.5mg Tablet helps lower blood pressure by reducing excess fluid in the body, supporting better blood pressure control and overall cardiovascular health.

Side effects of Thiazide Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Thiazide

Dizziness

How to use Thiazide Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Thiazide 12.5mg Tablet should be taken with or after food.

How Thiazide Tablet works

Thiazide 12.5mg Tablet is a diuretic which lowers blood pressure by removing extra water and certain electrolytes from the body. Over time it also relaxes blood vessels and improves blood flow.

All substitutes for Thiazide 12.5mg Tablet

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

Thiazide 12.5mg Tablet helps lower blood pressure and also removes excess water from your body.
Take it in the morning with breakfast to avoid getting up at night to urinate.
It makes you feel dizzy. Avoid driving and attention requiring activity until you know how it affects you.
Avoid alcohol intake while taking Thiazide 12.5mg Tablet as it may increase the dizziness.
It may cause a sudden drop of sodium level in blood. Avoid low sodium diet while you are taking this medication.
Monitor your blood pressure after starting Thiazide 12.5mg Tablet, and notify your doctor if it does not lower down.
Notify your doctor if you experience dizziness, tiredness, or muscle weakness that does not go away.
Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.

Safety advice

Alcohol

CAUTION

Alcohol should be used with caution while taking Thiazide 12.5mg Tablet.

Pregnancy

SAFE IF PRESCRIBED

Thiazide 12.5mg Tablet is generally considered safe to use during pregnancy. Animal studies do not indicate harmful effects. However, there are limited human studies.

Breast feeding

CAUTION

Thiazide 12.5mg Tablet should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from the body.

Driving

CONSULT YOUR DOCTOR

It is not known whether Thiazide 12.5mg Tablet alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.

Kidney

CAUTION

Thiazide 12.5mg Tablet should be used with caution in patients with severe kidney disease. Dose adjustment may be needed.
Use of Thiazide 12.5mg Tablet is not recommended in patients with severe kidney disease.

Liver

CAUTION

Thiazide 12.5mg Tablet should be used with caution in patients with severe liver disease. Dose adjustment may be needed.

Interaction with drugs

Taking Thiazide with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Severe

Lithium carbonate (Oral Route)

Do not consume Lithium carbonate with Hydrochlorothiazide. If concurrent use is essential, your doctor may regularly monitor Lithium carbonate and potassium levels. Watch out for symptoms such as impaired coordination, double vision, dizziness, or confusion, and consult your doctor if you experience them. They may adjust the dose of Lithium carbonate accordingly.

Severe

Ciclosporin (Oral Route)

Your doctor may frequently monitor your electrolyte levels, including magnesium.

Severe

Ciclosporin (Injection Route)

Your doctor may frequently monitor your electrolyte levels, including magnesium.

Moderate

Chloroquine (Oral Route)

Your doctor may monitor your potassium levels closely.

Moderate

Dexamethasone (Oral Route)

If concurrent use is essential, your doctor may monitor your potassium levels along with your overall treatment and adjust the doses as per the observations.

Frequently asked questions

What is Thiazide 12.5mg Tablet used for?

Thiazide 12.5mg Tablet is a diuretic (water pill) used to treat high blood pressure and swelling caused by conditions, such as heart failure, kidney disease, or liver disease. Lowering blood pressure helps reduce the risk of strokes, heart attacks, and kidney problems.

Who should not take Thiazide 12.5mg Tablet?

Individuals should not take Thiazide 12.5mg Tablet if they are allergic to hydrochlorothiazide or any other ingredients present in Thiazide 12.5mg Tablet, or are unable to produce urine. People with severe kidney or liver problems should only take it under strict medical supervision.

Can Thiazide 12.5mg Tablet affect potassium levels in the body?

Yes, Thiazide 12.5mg Tablet can lower potassium levels, which may cause muscle weakness, irregular heartbeat, or fatigue. Your doctor may monitor your blood potassium regularly or recommend potassium supplements.

Does Thiazide 12.5mg Tablet increase blood sugar levels?

Yes, in some people, Thiazide 12.5mg Tablet can raise blood sugar levels. If you have diabetes, your doctor may need to adjust your diabetes medicines and monitor your blood sugar more often.

Can Thiazide 12.5mg Tablet increase uric acid and cause gout?

Yes, Thiazide 12.5mg Tablet may increase uric acid levels in the blood, which can trigger gout in people who are prone to it.

Does Thiazide 12.5mg Tablet cause dehydration?

Yes, Thiazide 12.5mg Tablet may lead to dehydration because it increases urine output. If you don’t drink enough water, you might feel dizzy, thirsty, or have a dry mouth. If you have heart problems, check with your doctor about how much fluid you should drink, as fluid intake is intentionally restricted in some heart conditions.

Can Thiazide 12.5mg Tablet cause sensitivity to sunlight?

Yes, Thiazide 12.5mg Tablet can make your skin more sensitive to sunlight, increasing the risk of sunburn. It is advised to use sunscreen and protective clothing while outdoors.

Is Thiazide 12.5mg Tablet safe for people with kidney problems?

If you have mild kidney problems, your doctor may adjust your Thiazide 12.5mg Tablet dose and monitor your kidney function. This medicine should not be used in people with severe kidney disease unless recommended by a specialist.

Can Thiazide 12.5mg Tablet cause low sodium levels?

Yes, Thiazide 12.5mg Tablet may cause low sodium levels (hyponatremia), which can lead to confusion, weakness, nausea, and, in severe cases, seizures.

What are the serious side effects of Thiazide 12.5mg Tablet?

Serious side effects of Thiazide 12.5mg Tablet include severe dizziness, irregular heartbeat, difficulty breathing, unusual weakness, swelling in the face or throat, or signs of a severe allergic reaction. Seek immediate medical attention if you experience any of these symptoms.

Fact Box

Chemical Class

Benzothiadiazines (Thiazides)

Habit Forming

Therapeutic Class

CARDIAC

Action Class

Thiazide Diuretics

Related lab tests

Kidney Function Test

References

Opie LH, Victor RG, Kaplan NM. Diuretics. In: Opie LH, Gersh BJ, editors. Drugs for the Heart. 8th ed. Philadelphia, Pennsylvania: Elsevier Saunders; 2013. pp. 99, 101-102.
Hydrochlorothiazide. Morgantown, West Virginia: Mylan Pharmaceuticals Inc.; 2011. [Accessed 18 Mar. 2019] (online) Available from:
Chaves RG, Lamounier JA. Breastfeeding and maternal medications. J Pediatr (Rio J). 2004;80(5 Suppl):S189-S198. [Accessed 18 Mar. 2019] (online) Available from:

User feedback

Patients taking Thiazide 12.5mg Tablet

Once A Day

74%

Twice A Day

19%

Alternate Day

What are you using Thiazide Tablet for?

Hypertension (high blood pressure)

67%

Kidney stone

33%

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Ordain Health Care Global Pvt Ltd
Address: Exeltis - Ordain Health Care Global Pvt Ltd , Khivraj Complex - II, 4th Floor, No: 480, Anna Salai, Nandanam, Chennai - 600 035, Tamil Nadu, India.

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Thiazide 12.5mg Tablet. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

Lab tests offered by us

Why we need a prescription?

Thiazide 12.5mg Tablet

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Thiazide Tablet

Benefits of Thiazide Tablet

Side effects of Thiazide Tablet

How to use Thiazide Tablet

How Thiazide Tablet works

All substitutes for Thiazide 12.5mg Tablet

Aquazide 12.5 Tablet

Dizide 12.5mg Tablet

Hydrozide 12.5mg Tablet

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Lithium carbonate (Oral Route)

Ciclosporin (Oral Route)

Ciclosporin (Injection Route)

Chloroquine (Oral Route)

Dexamethasone (Oral Route)

Frequently asked questions

What is Thiazide 12.5mg Tablet used for?

Who should not take Thiazide 12.5mg Tablet?

Can Thiazide 12.5mg Tablet affect potassium levels in the body?

Does Thiazide 12.5mg Tablet increase blood sugar levels?

Can Thiazide 12.5mg Tablet increase uric acid and cause gout?

Does Thiazide 12.5mg Tablet cause dehydration?

Can Thiazide 12.5mg Tablet cause sensitivity to sunlight?

Is Thiazide 12.5mg Tablet safe for people with kidney problems?

Can Thiazide 12.5mg Tablet cause low sodium levels?

What are the serious side effects of Thiazide 12.5mg Tablet?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Kidney Function Test

References

User feedback

Patients taking Thiazide 12.5mg Tablet

What are you using Thiazide Tablet for?

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

In case of any issues, contact us

Lab tests offered by us

Related/Popular tests