Prospect:patient information
FORTZAAR 100mg/25mg film-coated tablets
losartan potassium and hydrochlorothiazide
Read the entire leaflet carefully before starting to take this medicine, as it contains important information for you.
Contents of the pack
Fortzaar 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, causing the blood vessels to relax, which in turn lowers blood pressure. Hydrochlorothiazide causes the kidneys to eliminate more water and salts. This also helps to reduce blood pressure.
Fortzaar is indicated for the treatment of essential hypertension (high blood pressure).
Do not take Fortzaar
Warnings and precautions
Talk to your doctor, pharmacist, or nurse before starting Fortzaar.
If you experience a decrease in vision or eye pain, these could be symptoms of fluid accumulation in the vascular layer of the eye (choroidal effusion) or increased pressure in the eye, and can occur within hours to weeks after taking Fortzaar. If left untreated, this can lead to permanent vision loss. You may be at higher risk if you have previously had an allergy to penicillin or sulfonamide.
You should inform your doctor if you think you are pregnant (or might be). Fortzaar is not recommended during pregnancy and should not be taken if you are pregnant for more than 3 months, as it can cause serious harm to your baby if used from the third month of pregnancy onwards.
It is essential that you inform your doctor before taking Fortzaar:
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 Fortzaar”.
Talk to your doctor if you experience abdominal pain, nausea, vomiting, or diarrhea after taking Fortzaar. Your doctor will decide whether to continue treatment. Do not stop taking Fortzaar on your own.
Children and adolescents
There is no experience with the use of Fortzaar in children. Therefore, Fortzaar should not be administered to children.
Other medicines and Fortzaar
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., trimetoprim-containing medicines), as combination with Fortzaar is not recommended.
Diuretics like hydrochlorothiazide contained in Fortzaar may interact with other medicines.
Lithium-containing preparations should not be taken with Fortzaar without close medical supervision.
Special precautions may be necessary (e.g., blood tests) if you are taking other diuretics (“water pills”), certain laxatives, gout treatments, heart rhythm or diabetes medicines (oral or insulin).
It is also important that your doctor knows if you are taking:
Your doctor may need to adjust 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 Fortzaar” and “Warnings and precautions”).
When taking Fortzaar, inform your doctor if you are going to have a radiographic test with an iodine-containing contrast medium.
Taking Fortzaar with food and drinks
It is recommended that you do not drink alcohol while taking these tablets: alcohol and Fortzaar tablets may increase each other's effects.
Excessive salt in your diet may counteract the effect of Fortzaar tablets.
Fortzaar tablets can be taken with or without food.
You should avoid grapefruit juice while taking Fortzaar.
Pregnancy and breastfeeding
Pregnancy
You should inform your doctor if you think you are pregnant (or might be). Your doctor will normally advise you to stop taking Fortzaar before you become pregnant or as soon as you know you are pregnant and will advise you to take another medicine instead of Fortzaar. Fortzaar is not recommended during pregnancy and should not be taken if you are pregnant for more than 3 months, as it can cause serious harm to your baby if used from the third month of pregnancy onwards.
Breastfeeding
Tell your doctor if you are breastfeeding or about to start breastfeeding. Fortzaar is not recommended for mothers who are breastfeeding, and your doctor may choose another treatment if you wish to continue breastfeeding.
Use in elderly patients
Fortzaar works in the same way and is equally well tolerated by most elderly patients and young adults. Most elderly patients require the same dose as younger patients.
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.
Fortzaar 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 can produce a positive result in doping tests.
Follow the instructions for administration of this medicine exactly as prescribed by your doctor or pharmacist. If you are unsure, consult your doctor or pharmacist again. Your doctor will decide the appropriate dose of Fortzaar, depending on your condition and whether you are taking other medicines. It is essential to keep taking Fortzaar while it is prescribed by your doctor 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 50 mg losartan/12.5 mg hydrochlorothiazide per day to control blood pressure over 24 hours. This can be increased to 2 tablets of 50 mg losartan/12.5 mg hydrochlorothiazide per day or changed to 1 tablet of Fortzaar 100 mg/25 mg (a stronger dose) per day. The maximum daily dose is 2 tablets of 50 mg losartan/12.5 mg hydrochlorothiazide per day or 1 tablet of 100 mg losartan/25 mg hydrochlorothiazide per day.
Administration
The tablets should be swallowed whole with a glass of water.
If you take more Fortzaar than you should
In case of overdose, contact your doctor immediately for immediate medical attention. Overdose can cause a drop in blood pressure, palpitations, slow pulse, changes in blood composition, and dehydration.
You can also call the Toxicology Information Service. Telephone: (91) 562 04 20, indicating the medicine and the amount taken. It is recommended to bring the packaging and the leaflet of the medicine to the healthcare professional.
If you forget to take Fortzaar
Try to take Fortzaar every day as prescribed. However, if you forget a dose, do not take an extra dose. Simply return to your usual schedule.
Like all medicines, this medicine can cause side effects, although not everybody gets them.
If you experience the following, stop taking Fortzaar tablets and inform your doctor immediately or go to the casualty 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, affecting more than 1 in 10,000 patients but fewer than 1 in 1,000 patients. You may need urgent medical attention or hospitalization.
Very rare(may affect up to 1 in 10,000people):
Acute respiratory distress (signs include severe difficulty breathing, fever, weakness, and confusion).
Other side effects that may occur:
Common(may affect up to 1 in 10people):
Uncommon(may affect up to 1 in 100people):
Rare(may affect up to 1 in 1,000people):
Not known(frequency cannot be estimated from the available data):
Reporting of side effects:
If you experience any side effects, talk to your doctor, pharmacist, or nurse. 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 this medicine out of the sight and reach of children.
Do not use this medicine after the expiry date which is stated on the carton after CAD. The expiry date is the last day of the month indicated.
Blister
Store Fortzaar in the original packaging to protect it from light and moisture. Do not store the container at a temperature above 30 °C.
Bottle
Store in the original packaging to protect it from light. Keep the bottle tightly closed to protect it from moisture. Do not store the bottle at a temperature above 25 °C.
Medicines should not be disposed of via wastewater or household waste. Deposit the packaging and any unused medicines at the SIGRE collection point in 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 Fortzaar
The active ingredients are losartan potassium and hydrochlorothiazide.
Each Fortzaar tablet contains, as active ingredients, 100 mg of losartan potassium and 25 mg of hydrochlorothiazide.
Fortzaar contains the following inactive ingredients: microcrystalline cellulose (E-460), lactose monohydrate, pregelatinized corn starch, magnesium stearate (E-572), hydroxypropyl cellulose (E-463), hypromellose (E-464).
Fortzaar contains 8.48 mg (0.216 mEq) of potassium.
Fortzaar also contains titanium dioxide (E-171), yellow quinoline aluminum lake (E-104), and carnauba wax (E-903).
Appearance of the Product and Package Contents
Fortzaar is supplied as film-coated tablets, light yellow in color, oval in shape, engraved with "747" on one side and smooth on the other.
Fortzaar is supplied in the following package sizes:
PVC/PE/PVDC blister pack with an aluminum foil, in boxes containing 7, 14, 28, 30, 50, 56, 84, 90, 98, or 280 tablets, and unit-dose packages of 28, 56, and 98 tablets for hospital use. HDPE bottle of 100 tablets.
Not all package sizes may be marketed.
Marketing Authorization Holder and Manufacturer
Marketing Authorization Holder Organon Salud, S.L. Paseo de la Castellana, 77 28046 Madrid Spain Tel.: 915911279 | Manufacturer Organon Heist bv Industriepark 30 2220 Heist-op-den-Berg Belgium Or Merck Sharp & Dohme B.V. Waarderweg, 39 2003 PC Haarlem Netherlands |
This medicine is authorized in the Member States of the European Economic Areaandin the United Kingdom (Northern Ireland)under the following names:
Member State | Trade Name |
Belgium | COZAAR PLUS FORTE 100 mg/25 mg film-coated tablets |
Denmark | Cozaar Comp. Forte |
Finland | COZAAR Comp Forte |
France | FORTZAAR 100 mg/25 mg film-coated tablet |
Germany | FORTZAAR 100/25 mg film-coated tablets |
Greece | HYZAAR Extra Forte |
Iceland | Cozaar Comp Forte |
Ireland | COZAAR Comp 100 mg/25 mg film-coated tablets |
Italy | HIZAAR 100 mg + 25 mg film-coated tablets |
Italy | FORZAAR 100 mg + 25 mg film-coated tablets |
Luxembourg | COZAAR PLUS FORTE 100 mg/25 mg film-coated tablets |
Netherlands | FORTZAAR 100/25 |
Norway | Cozaar Comp Forte |
Poland | HYZAAR FORTE |
Portugal | Fortzaar |
Spain | FORTZAAR 100 mg/25 mg film-coated tablets |
Sweden | COZAAR Comp Forte 100 mg/25 mg film-coated tablets |
United Kingdom (Northern Ireland) | COZAAR Comp 100 mg/25 mg film-coated tablets |
Date of the last revision of thisleaflet:03/2025.
Detailed and up-to-date information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) (http://www.aemps.gob.es/)