


Ask a doctor about a prescription for OLMESARTAN/HYDROCHLOROTHIAZIDE COMBIX 20 mg/25 mg FILM-COATED TABLETS
Leaflet:informationforthepatient
Olmesartan/HydrochlorothiazideCombix20mg/25mgfilm-coatedtablets
Olmesartan medoxomil/hydrochlorothiazide
Readtheleafletcarefullybeforeyoustarttakingthemedicinebecauseitcontainsimportantinformationforyou.
Contents of the pack and other information
Contents of the pack and further information
Olmesartan/Hydrochlorothiazide Combix contains two active substances, olmesartan medoxomil and hydrochlorothiazide, which are used to treat high blood pressure (hypertension):
Olmesartan/Hydrochlorothiazide Combix will only be given to you if treatment with olmesartan medoxomil alone has not adequately controlled your blood pressure. The combination of the two active substances in Olmesartan/Hydrochlorothiazide Combix has been shown to be more effective at lowering blood pressure than either substance alone.
You may already be taking medicines for high blood pressure, but your doctor may think it is necessary for you to take Olmesartan/Hydrochlorothiazide Combix to lower it further.
High blood pressure can be controlled with medicines such as Olmesartan/Hydrochlorothiazide Combix. Your doctor has probably also advised you to make some changes to your lifestyle to help lower your blood pressure (e.g. losing weight, stopping smoking, reducing alcohol intake, and reducing the amount of salt in your diet). Your doctor may also have advised you to take regular exercise, such as walking or swimming. It is important to follow this advice.
Do not take Olmesartan/Hydrochlorothiazide Combix
If you think any of these apply to you, do not take the tablets. Talk to your doctor and follow their advice.
Warnings and precautions
Tell your doctor or pharmacist before you start taking Olmesartan/Hydrochlorothiazide Combix:
If you are taking any of the following medicines used to treat high blood pressure (hypertension):
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 an increase in pressure in the eye, and can occur within hours to a week after taking Olmesartan/Hydrochlorothiazide Combix.
If you have had skin cancer or if you develop an unexpected skin lesion during treatment. Treatment with hydrochlorothiazide, particularly long-term use at high doses, may increase the risk of some types of skin and lip cancer (non-melanoma skin cancer). Protect your skin from sun exposure and UV rays while taking Olmesartan/Hydrochlorothiazide Combix.
If you have had respiratory or lung problems (such as inflammation or fluid in the lungs) after taking hydrochlorothiazide in the past. If you experience shortness of breath or severe difficulty breathing after taking Olmesartan/Hydrochlorothiazide Combix, seek medical attention immediately.
Your doctor may want to check your kidney function, blood pressure, and blood electrolyte levels (e.g. potassium) at regular intervals.
Tell your doctor if you experience abdominal pain, nausea, vomiting, or diarrhea after taking olmesartan/hydrochlorothiazide. Your doctor will decide whether to continue treatment. Do not stop taking olmesartan/hydrochlorothiazide on your own.
See also the information under the heading “Do not take Olmesartan/Hydrochlorothiazide Combix”.
Before taking the tablets, tell your doctorif you have any of the following health problems:
Contact your doctor if you experience severe, persistent, and significant weight loss due to diarrhea. Your doctor will assess your symptoms and decide how to proceed with your blood pressure treatment.
Your doctor may want to see you more often and perform some tests if you have any of these problems.
Olmesartan/Hydrochlorothiazide Combix may cause an increase in lipid and uric acid levels in the blood. Your doctor will probably want to perform a blood test from time to time to monitor these possible changes.
A change in blood electrolyte levels may occur. Your doctor will probably want to perform a blood test from time to time to monitor this possible change. Some signs of electrolyte changes are: thirst, dry mouth, muscle pain or cramps, tired muscles, low blood pressure (hypotension), feeling of weakness, slowness, tiredness, drowsiness or restlessness, vomiting, decreased need to urinate, rapid heartbeat. Tell your doctor if you notice any of these symptoms.
As with any other medicine that lowers blood pressure, an excessive decrease in blood pressure in patients with impaired blood flow to the heart or brain may cause a heart attack or stroke. Therefore, your doctor will carefully monitor your blood pressure.
If you are going to have parathyroid function tests, you should stop taking Olmesartan/Hydrochlorothiazide Combix before these tests are performed.
Athletes are informed that this medicinal product contains a component (hydrochlorothiazide) that may produce a positive result in doping tests.
Must tell your doctor if you are pregnant or think you might be. Olmesartan/Hydrochlorothiazide Combix is not recommended during pregnancy, and must not be taken if you are more than 3 months pregnant, as it may cause serious harm to your baby if used after the third month of pregnancy.
Children and adolescents
Olmesartan/Hydrochlorothiazide Combix is not recommended for children and adolescents under 18 years.
Taking Olmesartan/Hydrochlorothiazide Combix with other medicines
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medicines.
Your doctor may need to change your dose and/or take other precautions:
In particular, tell your doctor or pharmacist about any of the following medicines:
Taking Olmesartan/Hydrochlorothiazide Combix with food, drinks, and alcohol
Olmesartan/Hydrochlorothiazide Combix can be taken with or without food.
Be careful when drinking alcohol while taking Olmesartan/Hydrochlorothiazide Combix, as some people may feel weak or dizzy. If this happens, do not drink any alcohol, including wine, beer, or alcoholic beverages.
Black patients
As with other similar medicines, the blood pressure lowering effect of Olmesartan/Hydrochlorothiazide Combix is somewhat less in black patients.
Pregnancy and breastfeeding
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.
Pregnancy
Tell your doctor if you are pregnant or think you might be. Your doctor will advise you to stop taking Olmesartan/Hydrochlorothiazide Combix before you become pregnant or as soon as you know you are pregnant, and will advise you to take another medicine instead of Olmesartan/Hydrochlorothiazide Combix. Olmesartan/Hydrochlorothiazide Combix is not recommended during pregnancy, and must not be taken when you are more than 3 months pregnant, as it may cause serious harm to your baby if used after the third month of pregnancy.
Breastfeeding
Tell your doctor if you are breastfeeding or about to start breastfeeding. Olmesartan/Hydrochlorothiazide Combix is not recommended for women who are breastfeeding, and your doctor may choose another treatment if you want to breastfeed.
Athletes
Athletes are informed that this medicinal product contains a component (hydrochlorothiazide) that may produce a positive result in doping tests.
Driving and using machines
You may feel drowsy or dizzy while being treated for high blood pressure. If this happens, do not drive or use machines until the symptoms have disappeared. Consult your doctor.
Olmesartan/Hydrochlorothiazide Combix contains lactose
If your doctor has told you that you have an intolerance to some sugars, consult your doctor before taking this medicine.
Follow exactly the administration instructions of this medication indicated by your doctor. In case of doubt, consult your doctor or pharmacist again.
The recommended doseis 1 tablet of Olmesartán/Hidroclorotiazida 40 mg/12.5 mg per day. If blood pressure is not adequately controlled, your doctor may change the dose to 1 tablet of Olmesartán/Hidroclorotiazida 40 mg/25 mg per day.
Take the tablets with water. If possible, take your dose at the same time every day, for example, at breakfast time. It is essential that you continue taking Olmesartán/Hidroclorotiazida until your doctor tells you to stop.
If you take more Olmesartán/HidroclorotiazidaCombix than you should
If you take more tablets than you should or if a child accidentally ingests one or more tablets, contact your doctor immediately or go to the emergency department of the nearest hospital and take the medication package with you.
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 medication and the amount ingested.
If you forget to take Olmesartán/Hidroclorotiazida Combix
If you forget to take a dose, take the usual dose the next day. Do nottake a double dose to make up for the missed doses.
If you interrupt treatment with Olmesartán/Hidroclorotiazida Combix
It is essential to continue taking Olmesartán/Hidroclorotiazida, unless your doctor tells you to interrupt treatment.
If you have any other doubts about the use of this medication, ask your doctor or pharmacist.
Like all medications, this medication can cause adverse effects, although not all people suffer from them.
However, the following adverse effects can be serious:
Olmesartán/Hidroclorotiazida is a combination of two active ingredients. The following information describes the adverse effects reported so far with the combination Olmesartán/Hidroclorotiazida (in addition to those already mentioned) and the adverse effects known for the two active ingredients separately.
These are other known adverse effects of Olmesartán/Hidroclorotiazida:
If these effects occur, they are usually mild and it is not necessary to interrupt treatment.
Common adverse effects (may affect up to 1 in 10 people):
Dizziness, weakness, headache, fatigue, chest pain, swelling of ankles, feet, legs, hands, or arms.
Uncommon adverse effects (may affect up to 1 in 100 people):
Rapid and intense heartbeat (palpitations), rash, eczema, vertigo, cough, indigestion, abdominal pain, nausea, vomiting, diarrhea, muscle cramps, and muscle pain, joint pain, back pain, erection problems in men, blood in urine.
Also, some changes in blood tests have been observed infrequently, including:
Increased levels of fat in the blood, increased urea or uric acid in the blood, increased creatinine, increased or decreased potassium levels in the blood, increased calcium levels in the blood, increased blood sugar, increased liver function test values. Your doctor will monitor you with a blood test and tell you if you need to take any action.
Rare adverse effects (may affect up to 1 in 1,000 people):
Feeling unwell, changes in consciousness, skin swelling (hives), acute kidney failure.
Also, some changes in blood test results have been observed rarely, including:
Increased urea nitrogen in the blood, decreased hemoglobin and hematocrit values. Your doctor will monitor you with a blood test and tell you if you need to take any action.
Additional adverse effects reported with the use of olmesartán medoxomil or hydrochlorothiazide alone, but not with Olmesartán/Hidroclorotiazida or at a higher frequency:
Olmesartán medoxomil:
Common adverse effects (may affect up to 1 in 10 people):
Bronchitis, cough, nasal congestion and secretion, sore throat, abdominal pain, indigestion, diarrhea, nausea, gastroenteritis, joint or bone pain, back pain, blood in urine, urinary tract infection, flu-like symptoms, pain.
Also, some changes in blood test results have been observed frequently, including:
Increased levels of fat in the blood, increased urea or uric acid in the blood, increased liver or muscle function.
Uncommon adverse effects (may affect up to 1 in 100 people):
Rapid allergic reactions that can affect the whole body and cause breathing problems, as well as a rapid drop in blood pressure that can lead to fainting (anaphylactic reactions), facial inflammation, angina (chest pain or discomfort known as angina pectoris), feeling unwell, allergic skin rash, itching, exanthema (skin rash), skin swelling (hives).
Also, some changes in blood test results have been observed infrequently, including:
Decreased number of a type of blood cells called platelets (thrombocytopenia).
Rare adverse effects (may affect up to 1 in 1,000 people):
Renal function impairment, lack of energy.
Also, some changes in blood test results have been observed rarely, including:
Increased potassium in the blood.
Intestinal angioedema: swelling in the intestine that presents symptoms such as abdominal pain, nausea, vomiting, and diarrhea.
Hydrochlorothiazide:
Very common adverse effects (may affect more than 1 in 10 people):
Changes in blood tests, including increased fat in the blood and uric acid levels.
Common adverse effects (may affect up to 1 in 10 people):
Feeling confused, abdominal pain, stomach discomfort, feeling bloated, diarrhea, nausea, vomiting, constipation, glucose in urine.
Also, some changes in blood test results have been observed, including:
Increased creatinine, urea, calcium, and blood sugar levels, decreased chloride, potassium, magnesium, and sodium levels in the blood. Increased serum amylase (hyperamylasemia).
Uncommon adverse effects (may affect up to 1 in 100 people):
Decreased or loss of appetite, severe breathing difficulties, anaphylactic skin reactions (hypersensitivity reactions), worsening of pre-existing myopia, erythema, skin reactions due to light sensitivity, itching, purple spots or patches on the skin due to small hemorrhages (purpura), skin swelling (hives).
Rare adverse effects (may affect up to 1 in 1,000 people):
Inflammation and pain of the salivary glands, decreased number of white blood cells, decreased number of platelets in the blood, anemia, bone marrow depression, restlessness, depression, sleep problems, feeling of loss of interest (apathy), tingling and numbness, seizures (convulsions), yellowish perception of objects when looking at them, blurred vision, dry eyes, irregular heartbeat, inflammation of blood vessels, blood clots (thrombosis or embolism), lung inflammation, fluid accumulation in the lungs, pancreatitis, jaundice, infection in the gallbladder, symptoms of lupus erythematosus such as skin rash, joint pain, and cold hands and fingers, allergic skin reactions, skin peeling and blisters, non-infectious kidney inflammation (interstitial nephritis), fever, muscle weakness (which can sometimes cause movement disorders).
Very rare adverse effects (may affect up to 1 in 10,000 people):
Electrolyte imbalance that can cause an abnormally low level of chloride in the blood (hypochloremic alkalosis), intestinal obstruction (paralytic ileus), acute respiratory distress (signs include severe respiratory distress, fever, weakness, and confusion).
Unknown frequency:
Skin and lip cancer (non-melanoma skin cancer), decreased vision or eye pain due to high pressure [possible signs of fluid accumulation in the vascular layer of the eye (choroidal effusion) or acute angle-closure glaucoma].
Reporting of adverse effects:
If you experience any type of adverse effect, consult your doctor or pharmacist, even if it is a possible adverse effect that does not appear 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 medication.
Keep this medication out of sight and reach of children.
No special storage conditions are required.
Do not use this medication after the expiration date that appears on the packaging and on the blister pack after "EXP.". The expiration date is the last day of the month indicated.
Medications should not be thrown down the drain or into the trash. Deposit the packaging and medications you no longer need at the SIGRE collection point in the pharmacy. If in doubt, ask your pharmacist how to dispose of the packaging and medications you no longer need. This will help protect the environment.
Composition of Olmesartán/Hidroclorotiazida Combix
Each film-coated tablet contains 20 mg of olmesartán medoxomil and 25 mg of hydrochlorothiazide.
Appearance of the Product and Package Contents
Olmesartán/Hidroclorotiazida Combix 20 mg/25 mg is presented in the form of film-coated tablets, pink, round, biconvex with beveled edges, smooth on both sides.
The tablets are presented in Alu/Alu blister packs with a desiccant.
The following package sizes are available: 28 tablets.
Marketing Authorization Holder
Laboratorios Combix, S.L.U.
C/ Badajoz 2, Edificio 2
28223 Pozuelo de Alarcón (Madrid)
Spain
Manufacturer
Zydus France
Zac Les Hautes Pâturages
Parc d'Activités des Pleupliers
25 rue des Pleupliers
92000 Nanterre
France
or
Netpharmalab Consulting Services
Crta. De Fuencarral, 22
28108 Alcobendas (Madrid)
Spain
Date of the Last Revision of this Leaflet: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 OLMESARTAN/HYDROCHLOROTHIAZIDE COMBIX 20 mg/25 mg FILM-COATED TABLETS in October, 2025 is around 10.1 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.
The best alternatives with the same active ingredient and therapeutic effect.
Discuss dosage, side effects, interactions, contraindications, and prescription renewal for OLMESARTAN/HYDROCHLOROTHIAZIDE COMBIX 20 mg/25 mg FILM-COATED TABLETS – subject to medical assessment and local rules.