


Ask a doctor about a prescription for LOSARTAN/HYDROCHLOROTHIAZIDE VIATRIS 50/12.5 mg FILM-COATED TABLETS
Package Leaflet: Information for the User
Losartan/Hydrochlorothiazide Viatris 50 mg/12.5 mg film-coated tablets EFG
losartan potassium/hydrochlorothiazide
Read all of this leaflet carefully before you start taking this medicine, because it contains important information for you.
Contents of the pack
Losartan/Hydrochlorothiazide Viatris is a combination of an angiotensin II receptor antagonist (losartan) and a diuretic (hydrochlorothiazide).
Angiotensin II is a substance produced in the body that binds to receptors present in blood vessels, causing them to narrow. This leads to an increase in blood pressure.
Losartan prevents angiotensin II from binding to these receptors, which causes the blood vessels to relax, thereby decreasing blood pressure.
Hydrochlorothiazide causes the kidneys to eliminate more water and salts. This also helps to reduce blood pressure.
Losartan/hydrochlorothiazide is indicated for the treatment of essential hypertension (high blood pressure).
Do not take Losartan/Hydrochlorothiazide Viatris
Warnings and precautions
Consult your doctor, pharmacist, or nurse before starting to take Losartan/Hydrochlorothiazide Viatris.
It is important that you inform your doctor before taking losartan/hydrochlorothiazide:
Consult your doctor if you experience abdominal pain, nausea, vomiting, or diarrhea after taking losartan/hydrochlorothiazide. Your doctor will decide whether to continue treatment. Do not stop taking losartan/hydrochlorothiazide on your own.
Your doctor may monitor your kidney function, blood pressure, and blood electrolyte levels (e.g., potassium) at regular intervals.
See also the information under the heading “Do not take Losartan/Hydrochlorothiazide Viatris”.
Other medicines and Losartan/Hydrochlorothiazide Viatris
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.
Tell your doctor if you are taking potassium supplements, salt substitutes that contain potassium, potassium-sparing medicines, or other medicines that may increase serum potassium levels (e.g., trimethoprim-containing medicines), as combination with losartan/hydrochlorothiazide is not recommended.
Diuretics like hydrochlorothiazide in Losartan/Hydrochlorothiazide Viatris may interact with other medicines.
Lithium-containing preparations should not be taken with losartan/hydrochlorothiazide without careful monitoring by your doctor.
Special precautions may be necessary (e.g., blood tests) if you take potassium supplements, salt substitutes that contain potassium, or potassium-sparing medicines, diuretics (water tablets), certain laxatives, gout treatments, heart rhythm or diabetes medicines (oral or insulin).
It is also important that your doctor knows if you are taking:
Please inform your doctor when you are scheduled to have a contrast medium with iodine.
Your doctor may need to adjust your dose and/or take other precautions:
If you are taking an ACE inhibitor or aliskiren (see also the information under the headings “Do not take Losartan/Hydrochlorothiazide Viatris” and “Warnings and precautions”.
Taking Losartan/Hydrochlorothiazide Viatris with food and drinks
It is recommended that you do not drink alcohol while taking this medicine: alcohol and losartan/hydrochlorothiazide may increase the effects of each other.
Excessive salt in the diet may counteract the effect of losartan/hydrochlorothiazide.
Losartan/Hydrochlorothiazide Viatris can be taken with or without food.
Grapefruit juice should be avoided while taking this medicine.
Pregnancy and breastfeeding
Pregnancy
If you are pregnant or breastfeeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. Your doctor will normally advise you to stop taking losartan/hydrochlorothiazide before you become pregnant or as soon as you know you are pregnant and will advise you to take another medicine instead of losartan/hydrochlorothiazide. Losartan/hydrochlorothiazide is not recommended during the first trimester of pregnancy and must not be taken after the first trimester, as it may cause serious harm to your baby.
Breastfeeding
Tell your doctor if you are breastfeeding or about to start breastfeeding. Losartan/hydrochlorothiazide is not recommended during breastfeeding, and your doctor will choose another treatment for you if you want to breastfeed.
Ask your doctor or pharmacist for advice before taking any medicine.
Use in children and adolescents
There is no experience with the use of losartan/hydrochlorothiazide in children. Therefore, losartan/hydrochlorothiazide should not be given to children.
Use in elderly patients
Losartan/hydrochlorothiazide works as well and is as well tolerated by most elderly patients as by younger patients. Most elderly patients require the same dose as younger patients.
Driving and using machines
When starting treatment with this medicine, you should not perform tasks that require special attention (e.g., driving a car or using hazardous machinery) until you know how your medicine affects you.
Losartan/Hydrochlorothiazide Viatris contains lactose
This medicine contains lactose. If your doctor has told you that you have an intolerance to some sugars, contact them before taking this medicine.
Use in athletes
This medicine contains hydrochlorothiazide, which may produce a positive result in doping tests.
Follow exactly the administration instructions of losartan/hydrochlorothiazide given by your doctor. In case of doubt, consult your doctor or pharmacist again. Your doctor will decide the appropriate dose of losartan/hydrochlorothiazide, depending on your condition and whether you are taking other medicines. It is important to continue taking losartan/hydrochlorothiazide as long as your doctor prescribes it to maintain constant control of your blood pressure.
High blood pressure
For most patients with high blood pressure, the usual dose is 1 tablet of losartan/hydrochlorothiazide 50 mg/12.5 mg per day to control blood pressure over 24 hours. The dose can be increased to 2 tablets of losartan/hydrochlorothiazide 50 mg/12.5 mg per day or changed to 1 tablet of losartan/hydrochlorothiazide 100 mg/25 mg (a stronger dose) per day.
The maximum daily dose is 2 tablets of 50 mg of losartan/12.5 mg of hydrochlorothiazide per day or 1 tablet of 100 mg of losartan/25 mg of hydrochlorothiazide per day.
Administration
The tablets should be swallowed whole with a glass of water.
If you take more Losartan/Hydrochlorothiazide Viatris than you should
In case of overdose or accidental ingestion, contact your doctor immediately or go directly to the hospital for immediate medical attention, stating the medicine and the amount taken.
You can also call the Toxicology Information Service, telephone 91 562 04 20, stating the medicine and the amount taken. It is recommended to take the package and the leaflet of the medicine to the healthcare professional.
Overdose may cause a drop in blood pressure, palpitations, slow pulse, changes in blood composition, and dehydration.
If you forget to take Losartan/Hydrochlorothiazide Viatris
Try to take losartan/hydrochlorothiazide every day as prescribed. However, if you miss a dose, do not take an extra dose. Simply return to your regular schedule.
Like all medicines, this medicine can cause adverse effects, although not all people suffer from them.
If you experience the following, stop taking the losartan/hydrochlorothiazide tablets and inform your doctor immediately or go to the emergency department of your nearest hospital:
This is a serious but rare adverse effect that can affect up to 1 in 1,000 people. You may need urgent medical attention or hospitalization.
The following adverse effects have been reported:
Frequent(may affect up to 1 in 10 people)
Uncommon(may affect up to 1 in 100 people)
Rare(may affect up to 1 in 1,000 people)
Very Rare(may affect up to 1 in 10,000 people)
Frequency Not Known(cannot be estimated from the available data)
Reporting of Adverse Effects
If you experience any type of adverse effect, consult your doctor, pharmacist, or nurse, even if it is a possible adverse effect that is not listed in this leaflet. You can also report them directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting adverse effects, you can contribute to providing more information on the safety of this medicine.
Keep this medicine out of the sight and reach of children.
Do not use this medicine after the expiration date stated on the packaging after CAD or EXP. The expiration date is the last day of the month indicated.
Do not store above 30°C.
Store this medicine in its original packaging.
Keep the blister in the outer packaging. Do not open the blister until you are ready to take the tablet.
Medicines should not be disposed of via wastewater or household waste. Deposit the packaging and any unused medicines in the SIGRE collection point at your pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and any unused medicines. This will help protect the environment.
Composition of Losartan/Hydrochlorothiazide Viatris
The active ingredients are losartan potassium and hydrochlorothiazide. Each tablet contains, as active ingredients, 50 mg of losartan (potassium) and 12.5 mg of hydrochlorothiazide.
It contains 4.24 mg (0.108 mEq) of potassium.
The other ingredients are microcrystalline cellulose (E-460), lactose monohydrate, pregelatinized corn starch, magnesium stearate (E-470B), hydroxypropylcellulose (E-463), hypromellose (E-464), titanium dioxide (E-171), and yellow iron oxide (E-172).
Appearance of the Product and Package Contents
Losartan/Hydrochlorothiazide Viatris is presented in the form of film-coated tablets, without scoring, and yellow in color.
It is available in blisters of 28 tablets.
Marketing Authorization Holder and Manufacturer
Marketing Authorization Holder:
Viatris Pharmaceuticals, S.L.U.
C/ General Aranaz, 86
28027 - Madrid
Spain
Manufacturer:
Laboratorios Liconsa, S.A.
Avda. Miralcampo, nº7, Polígono Industrial Miralcampo
19200 – Azuqueca de Henares (Guadalajara)
Spain
O
Mylan Hungary Kft.
H-2900 Komárom
Mylan utca 1.
Hungary
Date of the Last Revision of this Leaflet:September 2025
Detailed information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.gob.es/
The average price of LOSARTAN/HYDROCHLOROTHIAZIDE VIATRIS 50/12.5 mg FILM-COATED TABLETS in November, 2025 is around 2.92 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.
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