


Ask a doctor about a prescription for LOSARTAN/HYDROCHLOROTHIAZIDE COMBIX 100 mg/25 mg FILM-COATED TABLETS
Package Leaflet: Information for the User
Losartan/Hydrochlorothiazide Combix 100 mg/25 mg film-coated tablets EFG
Potassium losartan and hydrochlorothiazide
Read all of this leaflet carefully before you start taking this medicine because it contains important information for you.
Losartan/Hydrochlorothiazide Combix is a combination of an angiotensin II receptor antagonist (losartan) and a diuretic (hydrochlorothiazide).
Losartan/Hydrochlorothiazide Combix is indicated for the treatment of essential hypertension (high blood pressure).
Do not take Losartan/Hydrochlorothiazide Combix
Warnings and precautions
Tell your doctor if you are pregnant (or think you may be). Losartan/Hydrochlorothiazide Combix is not recommended during the first trimester of pregnancy and must not be taken if you are pregnant more than 3 months, as it may cause serious harm to your baby when administered from that time on (see section Pregnancy).
It is important that you inform your doctor before taking Losartan/Hydrochlorothiazide Combix:
Your doctor may monitor your kidney function, blood pressure, and blood electrolyte levels (e.g., potassium) at regular intervals.
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.
See also the information under the heading “Do not take Losartan/Hydrochlorothiazide Combix”.
Interaction of Losartan/Hydrochlorothiazide Combix with other medicines
Tell your doctor or pharmacist if you are taking or have recently taken any other medicines, including those obtained without a prescription.
Diuretics like hydrochlorothiazide contained in Losartan/Hydrochlorothiazide Combix may interact with other medicines. Preparations containing lithium should not be taken with Losartan/Hydrochlorothiazide Combix without your doctor's careful monitoring. Special precautions may be necessary (e.g., blood tests) if you take potassium supplements, salt substitutes containing potassium, or potassium-sparing medicines, diuretics (water pills), some laxatives, medicines for gout, medicines to control heart rhythm or for diabetes (oral or insulin), or other blood pressure-lowering medicines.
It is also important that your doctor knows if you are taking other medicines to lower your blood pressure, steroids, cancer medicines, painkillers, antifungal medicines, or arthritis medicines, cholesterol-lowering resins such as cholestyramine, muscle relaxants, sleeping pills; opioid medicines like morphine, "pressor amines" like adrenaline or other medicines in the same group; (oral diabetes medicines or insulins).
Your doctor may need to change your dose and/or take other precautions:
If you are taking an angiotensin-converting enzyme inhibitor (ACE inhibitor) or aliskiren (see also the information under the headings “Do not take Losartan/Hydrochlorothiazide Combix” and “Warnings and precautions”).
Please, when taking Losartan/Hydrochlorothiazide Combix, inform your doctor when you are scheduled to have an iodine contrast medium.
Losartan/Hydrochlorothiazide Combix with food, drinks, and alcohol
It is recommended that you do not drink alcohol while taking these tablets: alcohol and Losartan/Hydrochlorothiazide Combix tablets may increase the effects of each other.
Excessive salt in the diet may counteract the effect of Losartan/Hydrochlorothiazide Combix tablets.
Losartan/Hydrochlorothiazide Combix can be taken with or without food.
Pregnancy, breastfeeding, and fertility
Pregnancy:
You should inform your doctor if you are pregnant (or think you may be). Your doctor will generally advise you to stop taking Losartan/Hydrochlorothiazide Combix before you become pregnant or as soon as you know you are pregnant and will recommend that you take another medicine instead of Losartan/Hydrochlorothiazide Combix. Losartan/Hydrochlorothiazide Combix is not recommended during the first trimester of pregnancy and must not be taken if you are pregnant more than 3 months, as it may cause serious harm to your baby when administered from that time on.
Breastfeeding:
Tell your doctor if you are breastfeeding or plan to start breastfeeding. Losartan/Hydrochlorothiazide Combix is not recommended during breastfeeding, and your doctor will choose another treatment for you if you want to breastfeed.
Consult your doctor or pharmacist before using any medicine.
Driving and using machines
When you start 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.
Important information about some of the ingredients of Losartan/Hydrochlorothiazide Combix
This medicine contains lactose. If your doctor has told you that you have an intolerance to some sugars, consult with 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 Combix given by your doctor. 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 Combix 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 for 24 hours. It 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.
Use in children and adolescents
There is no experience with the use of Losartan/Hydrochlorothiazide Combix in children. Therefore, Losartan/Hydrochlorothiazide Combix should not be administered to children.
Use in elderly patients
Losartan/Hydrochlorothiazide Combix works with equal efficacy and is equally well tolerated by most elderly patients and younger patients. Most elderly patients require the same dose as younger patients.
If you take more Losartan/Hydrochlorothiazide Combix than you should
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 taken.
Overdose may cause a drop in blood pressure, palpitations, slow pulse, changes in blood composition, and dehydration.
If you forget to take Losartan/Hydrochlorothiazide Combix
Try to take Losartan/Hydrochlorothiazide Combix as prescribed. However, if you miss a dose, do not take an extra dose. Simply return to your usual schedule.
Like all medicines, Losartan/Hydrochlorothiazide Combix can cause side effects, although not everybody gets them.
If you experience the following, stop taking Losartan/Hydrochlorothiazide Combix tablets and inform your doctor immediately or go to the emergency department of your nearest hospital:
A severe allergic reaction (skin rash, itching, swelling of the face, lips, mouth, or throat that can cause difficulty swallowing or breathing).
This is a serious but rare side effect that affects more than 1 patient in 10,000 but less than 1 patient in 1,000. You may need urgent medical attention or hospitalization.
The following side effects have been reported:
Frequent (affecting less than 1 in 10 but more than 1 in 100):
Uncommon (affecting less than 1 in 100 but more than 1 in 1,000):
Rare (affecting more than 1 patient in 10,000 but less than 1 patient in 1,000):
Very rare (affecting up to 1 patient in 10,000):
Frequency not known
If you think any of the side effects you are experiencing is serious or if you notice any side effects not mentioned in this leaflet, tell your doctor or pharmacist.
Reporting of side effects
If you experience any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Pharmacovigilance System for Human Use Medicines: https://www.notificaram.es. By reporting side effects, you can help provide more information on the safety of this medicine.
Keep out of the reach and sight of children.
Do not use Losartan/Hydrochlorothiazide Combix after the expiration date stated on the packaging after EXP. The expiration date is the last day of the month indicated.
Do not store above 30°C.
Store Losartan/Hydrochlorothiazide Combix in its original packaging.
Keep the blister pack in the outer packaging. Do not open the blister pack until you are ready to take the tablet.
Medicines should not be disposed of via wastewater or household waste. Place the packaging and any unused medicines in the SIGRE collection point at your pharmacy. If in doubt, ask your pharmacist how to dispose of packaging and unused medicines. This will help protect the environment.
Composition of Losartan/Hydrochlorothiazide Combix
The active ingredients are losartan potassium and hydrochlorothiazide.
Each Losartan/Hydrochlorothiazide Combix 100 mg/25 mg film-coated tablet contains, as active ingredients, 100 mg of losartan (potassium) and 25 mg of hydrochlorothiazide.
Losartan/Hydrochlorothiazide Combix contains the following inactive ingredients: lactose monohydrate, cornstarch, microcrystalline cellulose (E460i), low-substituted hydroxypropyl cellulose, anhydrous colloidal silica, sodium starch glycolate (type A), magnesium stearate, hypromellose (E464), titanium dioxide (E171), macrogol, and talc (E553b).
Product Appearance and Container Content
Losartan/Hydrochlorothiazide Combix 100 mg/25 mg tablets are supplied as film-coated tablets, white or almost white in color, capsule-shaped, with the letters "ZD19" engraved on one side and smooth on the other.
Losartan/Hydrochlorothiazide Combix is supplied in the following container sizes:
Aluminum-Aluminum Blister, in packages of 28 tablets.
Marketing Authorization Holder
Combix Laboratories, S.L.U.
C/ Badajoz, 2. Building 2.
28223 Pozuelo de Alarcón (Madrid)
Spain
Phone: + 34 91 490 42 51
Fax: + 34 91 490 31 89
Manufacturer
Zydus France
ZAC Les Hautes Patures
Parc d’activités des Peupliers
25 Rue des Peupliers
92000 Nanterre
France
or
Centre Specialites Pharmaceutiques
ZAC du Suzot
35 rue de la Chapelle
63450 St Amant Tallende
France
The last revision of this prospectus was in February 2025
Detailed and updated information on this medication 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 COMBIX 100 mg/25 mg FILM-COATED TABLETS in November, 2025 is around 5.84 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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Discuss dosage, side effects, interactions, contraindications, and prescription renewal for LOSARTAN/HYDROCHLOROTHIAZIDE COMBIX 100 mg/25 mg FILM-COATED TABLETS – subject to medical assessment and local rules.