Pridrozin 25mg Tablet

Reviewed By Dr. Rajeev Sharma, MBA, MBBS

Last updated on 13 Feb 2026 | 03:55 AM (IST)

Pridrozin 25mg Tablet belongs to a class of drugs known as vasodilators and is used for the treatment of hypertension (high blood pressure). It is also used in combination with other medicines in the treatment of heart failure.

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General Information

Contains

Hydralazine (25mg)

Marketer

Healthpride

Storage

Store below 30°C

The content is shown in English

Product introduction

Pridrozin 25mg Tablet works by relaxing and enlarging certain small blood vessels so that blood flows through them more easily. You must follow your doctor’s instructions and take the medicine in the right amount, each day. It will help keep your blood pressure down.

Do not skip any doses. If you forget a dose of Pridrozin 25mg Tablet, wait until it is time for your next dose, then continue with your regular schedule. Do not stop taking it, or any of your other high blood pressure medicines, without checking with your doctor.

Pridrozin 25mg Tablet is generally safe and suitable for most people but has some potential side effects. The most common are headache, loss of appetite, and increased heart rate. Talk to your doctor if you are bothered by side effects or they do not resolve.

Uses of Pridrozin Tablet

Benefits of Pridrozin Tablet

Hypertension (high blood pressure)
Hypertension (high blood pressure) happens when the force of blood against the artery walls remains too high, which can strain the heart and increase the risk of serious problems like stroke, heart attack, or kidney disease. Pridrozin 25mg Tablet helps relax and widen blood vessels, lowering blood pressure and reducing the heart’s workload. This improves blood flow and lowers the risk of long-term complications.

Heart Failure
Heart failure occurs when the heart is unable to pump blood effectively, leading to symptoms like fatigue, swelling in the legs, and shortness of breath. By easing the pressure in blood vessels, Pridrozin 25mg Tablet helps the heart pump more efficiently, relieving symptoms and improving overall quality of life.

Side effects of Pridrozin 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 Pridrozin

Headache
Increased heart rate
Loss of appetite
Palpitations

How to use Pridrozin 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. Pridrozin 25mg Tablet may be taken with or without food.

How Pridrozin Tablet works

Pridrozin 25mg Tablet is a potassium channel opener. It works by relaxing blood vessels which lowers blood pressure and allows more blood and oxygen to reach the heart and other organs.

All substitutes for Pridrozin 25mg Tablet

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

UNIlazine 25 Tablet

by Cognitus Life Sciences Pvt.Ltd

₹6.45/tablet

75% cheaper

Quick tips

It may cause dizziness. Do not drive or perform activities that require mental focus until you know how Pridrozin 25mg Tablet affects you.
Avoid taking alcohol while taking this medication as it may lead to increased side effects.
Inform your doctor if you are pregnant, planning pregnancy or breastfeeding.
Inform your doctor about taking this medicine before undergoing any surgical procedure.
Your doctor may get your blood and urine test done regularly if you have been taking this medicine for a long time.
Do not stop taking this medicine suddenly without talking to your doctor.

Safety advice

Alcohol

CAUTION

Alcohol should be used with caution while taking Pridrozin 25mg Tablet.

Pregnancy

CONSULT YOUR DOCTOR

The safety of Pridrozin 25mg Tablet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

UNSAFE

Pridrozin 25mg Tablet is unsafe to use during breastfeeding. Data suggests that the drug may cause toxicity to the baby.

Driving

CAUTION

Pridrozin 25mg Tablet may cause dizziness or weakness due to changes in blood pressure. Do not drive if these symptoms occur.
As Pridrozin 25mg Tablet may cause headaches or lead to difficulty in concentration and this may affect your ability to drive.

Kidney

CAUTION

Pridrozin 25mg Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Regular monitoring of blood pressure is recommended for better dose adjustment.

Liver

CAUTION

Pridrozin 25mg Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Interaction with drugs

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

Severe

Diazoxide (Oral Route)

Careful consideration is advised when taking Diazoxide with Hydralazine. Your doctor may monitor your blood pressure frequently. Hydralazine may reduce blood levels of Diazoxide.

Moderate

Baclofen (Oral Route)

If concurrent use is essential, watch out for symptoms such as dizziness, fainting, blurred vision, nausea, fatigue, confusion, cold or clammy skin, shallow breathing or rapid pulse and consult your doctor if you experience them. They may adjust the doses as per the observations.

Moderate

Bortezomib (Injection Route)

Your doctor may monitor blood pressure and adjust the dose, if required.

Moderate

Aceclofenac (Oral Route)

Monitor your blood pressure regularly and talk to your doctor if you notice any unusual symptoms. Your doctor may adjust the dose if required.

Moderate

Aceclofenac (Injection Route)

Monitor your blood pressure regularly and talk to your doctor if you notice any unusual symptoms. Your doctor may adjust the dose if required.

Frequently asked questions

What is Pridrozin 25mg Tablet? What is it used for?

Pridrozin 25mg Tablet belongs to a class of medicines known as potassium channel openers. It helps in the removal of potassium from the walls of arteries. This results in increased space in the arteries for the blood to flow easily, thereby reducing the workload of the heart to pump the blood. It also improves the blood and oxygen supply to your heart muscle. It is prescribed to patients with stable angina (heart-related chest pain) who cannot take other medicines (beta blockers, calcium channel antagonist) meant for the treatment of angina.

Can I stop taking Pridrozin 25mg Tablet?

No, you should not stop taking Pridrozin 25mg Tablet without consulting your doctor. Suddenly stopping the medication may cause reoccurring of your anginal pain. It would be better to consult your doctor if you are experiencing any side effects.

How long does it take Pridrozin 25mg Tablet to start working?

Pridrozin 25mg Tablet starts working after about an hour of taking the medicine. However, full benefits may be seen only after 4 to 5 days. Consult your doctor if you do not notice any significant improvement in your condition.

For how long do I need to continue Pridrozin 25mg Tablet?

Pridrozin 25mg Tablet is generally prescribed for a long term. You may even need to take it for the rest of your life. You should continue taking your medicine for as long as your doctor tells you. However, if you experience any bothersome side effects, consult your doctor.

What if somebody accidentally takes an excess of Pridrozin 25mg Tablet?

Taking Pridrozin 25mg Tablet in excess may cause low blood pressure and the person may feel weak or dizzy. Also, one may experience irregular or fast heartbeat. In case of an overdose, immediately consult the doctor and seek emergency medical help.

Can I take Pridrozin 25mg Tablet if I am taking aspirin?

You should avoid taking Pridrozin 25mg Tablet and aspirin together. Taking these two medicines together increases the risk of ulcer or bleeding in the mouth, stomach or intestine. Immediately consult your doctor if you notice blood in your stool or vomit while using Pridrozin 25mg Tablet.

Who should not use Pridrozin 25mg Tablet?

People who are allergic to Pridrozin 25mg Tablet or any of its ingredients should avoid using Pridrozin 25mg Tablet. Also, patients who have heart problems such as cardiogenic shock or left ventricular failure with low filling pressure or cardiac decompensation or have a build-up of fluid in the lungs (pulmonary edema) should not use Pridrozin 25mg Tablet. Additionally, it is advised to avoid using Pridrozin 25mg Tablet in people taking medicines to treat erectile dysfunction (e.g., sildenafil, tadalafil and vardenafil) or medicines to treat pulmonary hypertension (e.g., riociguat). This is because these medicines may interfere with the working of Pridrozin 25mg Tablet and affect your blood pressure. Fluctuations in blood pressure could also be due to low blood volume.

Can Pridrozin 25mg Tablet affect my sex life?

No, Pridrozin 25mg Tablet does not affect your sex life. However, it is not recommended to take Pridrozin 25mg Tablet with other medications used for the treatment of erectile dysfunction (e.g., sildenafil or tadalafil) or premature ejaculation (e.g., vardenafil or dapoxetine). Taking these together can lead to a serious drop in your blood pressure. Consult your doctor if you are not sure.

Fact Box

Chemical Class

Phthalazines

Habit Forming

Therapeutic Class

CARDIAC

Action Class

Potassium Channel Openers (KCOs)

Related lab tests

Kidney Function Test

References

Michel T, Hoffman BB. Treatment of Myocardial Ischemia and Hypertension. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 779-81.
Benowitz NL. Antihypertensive Agents. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 178-79.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 658-59.
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:
Hydralazine Hydrochloride. Toronto, Ontario. Apotex Inc.; 2025 [Accessed 13 Feb. 2026] (online). Available from:

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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: Healthpride
Address: Plot No. 6, Ground Floor, Industrial Area Phase-2, Panchkula (HARYANA) 134113

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Pridrozin 25mg Tablet

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Pridrozin Tablet

Benefits of Pridrozin Tablet

Side effects of Pridrozin Tablet

How to use Pridrozin Tablet

How Pridrozin Tablet works

All substitutes for Pridrozin 25mg Tablet

UNIlazine 25 Tablet

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Diazoxide (Oral Route)

Baclofen (Oral Route)

Bortezomib (Injection Route)

Aceclofenac (Oral Route)

Aceclofenac (Injection Route)

Frequently asked questions

What is Pridrozin 25mg Tablet? What is it used for?

Can I stop taking Pridrozin 25mg Tablet?

How long does it take Pridrozin 25mg Tablet to start working?

For how long do I need to continue Pridrozin 25mg Tablet?

What if somebody accidentally takes an excess of Pridrozin 25mg Tablet?

Can I take Pridrozin 25mg Tablet if I am taking aspirin?

Who should not use Pridrozin 25mg Tablet?

Can Pridrozin 25mg Tablet affect my sex life?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Kidney Function Test

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

Related/Popular tests