Ask a doctor about a prescription for HYDROCHLOROTHIAZIDE KERN PHARMA 25 mg TABLETS
Package Leaflet: Information for the User
Hydrochlorothiazide Kern Pharma 25 mg Tablets
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Contents of the pack:
Hydrochlorothiazide Kern Pharma is a medicine that contains hydrochlorothiazide as the active substance. Hydrochlorothiazide is a diuretic (a medicine that increases urine production) that belongs to the group of thiazides. Hydrochlorothiazide increases the amount of urine (diuretic) helping to reduce blood pressure (antihypertensive).
This medicine is indicated for the treatment of the following diseases:
Do not take Hydrochlorothiazide Kern Pharma
Warnings and precautions
Consult your doctor, pharmacist, or nurse before starting to take Hydrochlorothiazide Kern Pharma.
Be especially careful if you have any of the following diseases:
Using Hydrochlorothiazide Kern Pharma with other medicines
Tell your doctor or pharmacist if you are using or have recently used other medicines, including those obtained without a prescription.
The following medicines may interact with Hydrochlorothiazide Kern Pharma when used at the same time:
Hydrochlorothiazide may interfere with the analysis of some tests, such as: bentiramida test (gastric test), or parathyroid function test, decrease the concentrations of protein-bound iodine, modify the results of blood and urine tests.
Pregnancy, breastfeeding, and fertility
Consult your doctor or pharmacist before using any medicine.
You should inform your doctor if you are pregnant or think you may be pregnant. Your doctor will usually advise you to take a different medicine instead of taking Hydrochlorothiazide Kern Pharma, as Hydrochlorothiazide Kern Pharma is not recommended during pregnancy. This is because hydrochlorothiazide crosses the placenta and its use after the first trimester of pregnancy may cause potentially harmful effects on the fetus and newborn.
Hydrochlorothiazide is excreted in human milk, so its use is not recommended in breastfeeding mothers.
Driving and using machines
At the start of treatment, when the dosage is changed, or in combination with alcohol consumption, Hydrochlorothiazide Kern Pharma may cause dizziness, drowsiness, or headache. If you experience dizziness, drowsiness, or headache, you should avoid driving and using machines.
Hydrochlorothiazide Kern Pharma contains lactose.If your doctor has told you that you have an intolerance to certain sugars, consult with them before taking this medicine.
Athletes are informed that this medicine contains a component that may result in a positive doping control test.
Follow the administration instructions of Hydrochlorothiazide Kern Pharma exactly as indicated by your doctor. Consult your doctor or pharmacist if you have any doubts.
The usual doses are:
The tablets should be taken orally.
The tablets can be taken whole, broken, or crushed, with the help of a little water or another non-alcoholic beverage.
Use in children and adolescents
The usual doses in children are:
If you take more Hydrochlorothiazide Kern Pharma than you should
If you have taken more Hydrochlorothiazide Kern Pharma than you should, severe hypotension (drastic reduction in blood pressure), unconsciousness, nausea, drowsiness, thirst, muscle pain, difficulty walking, cardiac arrhythmias, reduced heart rate, and kidney failure may occur.
In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone 91 562 04 20, indicating the medicine and the amount ingested.
If you forget to take Hydrochlorothiazide Kern Pharma
Do not take a double dose to make up for forgotten doses.
If you stop taking Hydrochlorothiazide Kern Pharma
Treatment of hypertension is long-term treatment, and stopping this treatment should be consulted with your doctor. Stopping or suspending your treatment could lead to an increase in blood pressure.
If you have any other questions about the use of this product, ask your doctor or pharmacist.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
These side effects include:
Metabolic and nutritional disorders: loss of appetite, sugar and/or uric acid in urine, increased sugar, cholesterol, and triglycerides in blood, electrolyte imbalance (potassium, sodium, chloride, and calcium).
Skin disorders: photosensitivity reactions, urticaria, skin rash, inflammation of the salivary glands, allergic reactions.
Renal and urinary disorders: kidney inflammation, increased urine production, frequent urination.
Reproductive system and breast disorders: impotence.
Psychiatric disorders: agitation, depression, sleep disorders.
Eye disorders: decreased vision or eye pain due to increased pressure [possible signs of fluid accumulation in the vascular layer of the eye (choroidal effusion) or acute angle-closure glaucoma].
Vascular disorders: inflammation of blood vessels.
Respiratory disorders: pneumonia, fluid accumulation in the lungs, acute respiratory distress (signs include severe respiratory distress, fever, weakness, and confusion).
Gastrointestinal disorders: pancreatitis, gastric irritation, diarrhea, constipation, loss of appetite, nausea, and vomiting, abdominal pain, and cramps.
Hepatobiliary disorders: yellowing of the skin.
Nervous system disorders: loss of appetite, difficulty moving, dizziness, vertigo, headache, weakness, restlessness.
Ear disorders: vertigo.
Cardiac disorders: low blood pressure, arrhythmias, allergic inflammation of the heart muscle, inflammation of blood vessels.
Musculoskeletal disorders: muscle spasms.
General disorders: fever.
Immune system disorders: allergy.
Blood disorders: low levels of red blood cells, white blood cells, and platelets in the blood.
Skin and lip cancer (non-melanoma skin cancer): Frequency "not known".
Reporting of side effects
If you experience any side effects, talk to your doctor or pharmacist, even if it is a side effect not listed in this leaflet. You can also report them directly through the Spanish Medicines and Healthcare Products Agency (AEMPS) www.notificaRAM.es. By reporting side effects, you can help provide more information on the safety of this medicine.
If you consider that any of the side effects you are suffering from is serious or if you notice any side effect not mentioned in this leaflet, inform your doctor or pharmacist.
No special storage conditions are required.
Keep this medicine out of the sight and reach of children.
Do not use Hydrochlorothiazide Kern Pharma after the expiration date stated on the packaging after EXP. The expiration date is the last day of the month indicated.
Medicines should not be disposed of via wastewater or household waste. Place the packaging and any unused medicine in the SIGRE collection point at the pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and any unused medicine. This will help protect the environment.
Composition of Hydrochlorothiazide Kern Pharma
Appearance of the product and packaging
Hydrochlorothiazide Kern Pharma are white, round, and scored on one side. The tablet can be divided into two equal halves.
It is available in blister packs of 20 tablets.
Marketing authorization holder and manufacturer
Kern Pharma S.L.
Polígono Ind. Colón II
Venus, 72
08228 Terrassa (Barcelona)
Spain
Date of the last revision of this leaflet: December 2021
Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Healthcare Products (AEMPS) www.aemps.gob.es/
The average price of HYDROCHLOROTHIAZIDE KERN PHARMA 25 mg TABLETS in October, 2025 is around 2.34 EUR. Prices may vary depending on the region, pharmacy, and whether a prescription is required. Always check with a local pharmacy or online source for the most accurate information.
Discuss dosage, side effects, interactions, contraindications, and prescription renewal for HYDROCHLOROTHIAZIDE KERN PHARMA 25 mg TABLETS – subject to medical assessment and local rules.