Package Leaflet: Information for the User
Losartan Pharmaclan50 mg film-coated tablets EFG
Losartan Pharmaclan100mg film-coated tablets EFG
potassium losartan
Read the package leaflet carefully before starting to take this medication, as it contains important information for you.
Losartan belongs to a group of medications called angiotensin II receptor antagonists. 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 the binding of angiotensin II to these receptors, which causes the blood vessels to relax, thereby reducing blood pressure. Losartan reduces the worsening of kidney function in patients with high blood pressure and type 2 diabetes.
Losartan is used:
Do not take Losartan Pharmaclan
Warnings and precautions
Consult your doctor, pharmacist, or nurse before starting to take this medication.
You should inform your doctor if you think you are pregnant (or might be). Losartan is not recommended at the beginning of pregnancy, and it should not be taken if you are pregnant for more than 3 months, as it may cause serious harm to your baby if used at this stage (see section Pregnancy).
Consult your doctor if you experience abdominal pain, nausea, vomiting, or diarrhea after taking Losartan Pharmaclan. Your doctor will decide whether to continue treatment. Do not stop taking Losartan Pharmaclan on your own.
It is essential that you inform your doctor before taking losartan:
Your doctor may need to monitor your kidney function, blood pressure, and blood electrolyte levels (e.g., potassium) at regular intervals.
See also the information in the section "Do not take Losartan Pharmaclan".
Children and adolescents
Losartan has been studied in children. For more information, talk to your doctor.
Losartan is not recommended for use in children with kidney or liver problems, as there is limited data available for these patient groups. Losartan is not recommended for use in children under 6 years of age, as it has not been shown to be effective in this age group.
Other medications and Losartan Pharmaclan
Tell your doctor or pharmacist if you are taking, have recently taken, or might take any other medications.
Tell your doctor if you are taking potassium supplements, salt substitutes that contain potassium, potassium-sparing diuretics (e.g., amiloride, triamterene, spironolactone), or other medications that may increase serum potassium levels (e.g., heparin, trimethoprim-containing medications), as combination with losartan is not recommended.
While being treated with losartan, be particularly cautious if you take any of the following medications:
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 Losartan Pharmaclan" and "Warnings and precautions").
If your kidney function is impaired, concomitant use of these medications may lead to worsening of kidney function.
Medications containing lithium should not be taken in combination with losartan without close monitoring by your doctor. Special precautions may be necessary (e.g., blood tests).
Taking Losartan Pharmaclan with food and drinks
Losartan can be taken with or without food.
Grapefruit juice should be avoided while taking losartan.
Pregnancy and breastfeeding
Pregnancy
You should inform your doctor if you think you are pregnant (or might be). Normally, your doctor will advise you to stop taking losartan before becoming pregnant or as soon as you know you are pregnant and will advise you to take another medication instead of losartan. Losartan is not recommended at the beginning of pregnancy, and it should not be taken if you are pregnant for more than 3 months, as it may cause serious harm to your baby if used from the third month of pregnancy.
Breastfeeding
Tell your doctor if you are breastfeeding or about to start breastfeeding. Losartan is not recommended for breastfeeding mothers, and your doctor may choose another treatment if you wish to continue breastfeeding. Especially if your child is a newborn or was born prematurely.
Consult your doctor or pharmacist before using this medication.
Driving and using machines
No studies have been conducted on the effects on the ability to drive and use machines.
It is unlikely that losartan will affect your ability to drive or use machines. However, like many medications used to treat high blood pressure, losartan may cause dizziness or drowsiness in some people. If you experience dizziness or drowsiness, consult your doctor before performing these activities.
Losartan Pharmaclan contains lactose
Losartan Pharmaclan contains lactose monohydrate. If your doctor has told you that you have an intolerance to certain sugars, consult with them before taking this medication.
Follow the instructions for administration of this medication exactly as indicated by your doctor or pharmacist. If in doubt, consult your doctor or pharmacist again.
Your doctor will decide the appropriate dose of losartan, depending on your condition and whether you are taking other medications. It is essential to continue taking losartan as prescribed by your doctor to maintain constant control of your blood pressure.
Adult patients with high blood pressure
Normally, treatment starts with 50 mg of losartan (one 50 mg losartan tablet) once a day. The maximum blood pressure-lowering effect should be achieved within 3-6 weeks of starting treatment. After that, in some patients, the dose may be increased to 100 mg of losartan (two 50 mg losartan tablets or one 100 mg losartan tablet) once a day.
If you think the effect of losartan is too strong or too weak, inform your doctor or pharmacist.
Use in children and adolescents
Children under 6 years of age
Losartan is not recommended for use in children under 6 years of age, as it has not been shown to be effective in this age group.
Children between 6-18 years of age
The recommended starting dose in patients who weigh between 20 and 50 kg is 0.7 mg of losartan per kg of body weight, administered once a day (up to 25 mg of losartan, i.e., half of a 50 mg tablet). The doctor may increase the dose if blood pressure is not controlled.
Other forms of this medication may be more suitable for children; consult your doctor or pharmacist.
Adult patients with high blood pressure and type 2 diabetes
Normally, treatment starts with 50 mg of losartan (one 50 mg losartan tablet) once a day. After that, the dose may be increased to 100 mg of losartan (two 50 mg losartan tablets or one 100 mg losartan tablet) once a day, depending on the response of your blood pressure.
Losartan can be administered with other medications that lower blood pressure (e.g., diuretics, calcium antagonists, alpha or beta blockers, and centrally acting medications), as well as with insulin and other medications frequently used to lower blood glucose levels (e.g., sulfonylureas, glitazones, and glucosidase inhibitors).
Adult patients with heart failure
Normally, treatment starts with 12.5 mg of losartan (one 12.5 mg losartan tablet) once a day. Normally, the dose should be gradually increased, weekly (i.e., 12.5 mg per day during the first week, 25 mg per day during the second week, 50 mg per day during the third week, 100 mg per day during the fourth week, 150 mg per day during the fifth week), up to a maintenance dose determined by your doctor. A maximum dose of 150 mg of losartan (e.g., three 50 mg losartan tablets or one 100 mg losartan tablet and one 50 mg losartan tablet) once a day can be used.
In the treatment of heart failure, losartan is normally combined with a diuretic (a medication that increases the amount of water that passes through your kidneys) and/or digitalis (a medication that helps your heart be stronger and more efficient) and/or a beta-blocker.
Posology in special patient groups
Your doctor may recommend a lower dose, especially when starting treatment in certain patients, such as those treated with high-dose diuretics, patients with liver insufficiency, or patients over 75 years of age. Losartan is not recommended for use in patients with severe liver insufficiency (see section "Do not take Losartan Pharmaclan").
Administration
The tablets should be swallowed with a glass of water. You should try to take your daily dose at approximately the same time each day. It is essential to continue taking losartan as prescribed by your doctor.
If you take more Losartan Pharmaclan than you should
If you accidentally take too many tablets, contact your doctor immediately. The symptoms of overdose are low blood pressure, increased heart rate, and possibly decreased heart rate.
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 Losartan Pharmaclan
If you accidentally miss a daily dose, simply take the next dose as usual. Do not take a double dose to make up for missed doses. If you have any other questions about the use of this medication, ask your doctor, pharmacist, or nurse.
If you have any other questions about the use of this medication, ask your doctor or pharmacist.
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 tablets and inform your doctor immediately or go to the emergency department of your nearest hospital:
A severe allergic reaction (rash, itching, swelling of the face, lips, mouth, or throat that can cause difficulty swallowing or breathing).
This is a serious but rare adverse effect, affecting more than 1 in 10,000 patients, but less than 1 in 1,000 patients. You may need urgent medical attention or hospitalization.
The following adverse effects have been reported with losartan:
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):
Frequency not known (frequency cannot be estimated from available data):
Adverse effects in children are similar to those observed in adults.
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 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.
Medicines should not be disposed of via wastewater or household waste. Deposit the packaging and medicines you no longer need at the SIGRE point in your pharmacy. In case of doubt, ask your pharmacist how to dispose of the packaging and medicines you no longer need. This will help protect the environment.
Composition of Losartan Pharmaclan
The active ingredient is losartan potassium, available in 50 mg or 100 mg tablets.
The other components (excipients) are: lactose monohydrate, microcrystalline cellulose (E-460), low-substituted hydroxypropylcellulose (E-463), pregelatinized corn starch, magnesium stearate (E-572), hypromellose (E-464), macrogol 400 (E1521), and titanium dioxide (E-171).
Appearance of the Product and Package Contents
50 mg: film-coated tablets, white to off-white, oval, scored, and engraved with "1" and "17" on one side and without engraving on the other side of the tablet. Without physical defects. The approximate dimensions of the tablet are 8.9 mm x 5.1 mm. The tablet can be divided into two equal doses.
100 mg: film-coated tablets, white to off-white, oval, engraved with "118" on one side and smooth on the other side. Without physical defects. The approximate dimensions of the tablet are 11.70 mm x 7.10 mm.
Package Details
50 mg:
PVC/PE/PVDC/Al blister pack with 28, 30, 90, or 98 tablets. High-density polyethylene (HDPE) bottle with 100 tablets.
100 mg:
PVC/PE/PVDC/Al blister pack with 28, 30, 90, 98, or 105 tablets. High-density polyethylene (HDPE) bottle with 100 tablets.
Only some package sizes may be marketed.
Marketing Authorization Holder and Manufacturer:
Marketing Authorization Holder
Pharmaclan S.R.O.
Trtinová 260/1, Cakovice
Prague 19600
Czech Republic
Manufacturer
Pharmazet Group S.R.O.
Trtinová 260/1,
Prague 19600
Czech Republic
This medicine is authorized in the member states of the European Economic Area under the following names:
Netherlands | Losartan kalium Pharmaclan 50 mg/100 mg film-coated tablets |
Spain | Losartán Pharmaclan 50 mg/100 mg film-coated tablets EFG |
Germany | Losartan Pharmaclan 50 mg/100 mg film-coated tablets |
Italy | Losartan Pharmaclan |
Sweden | Losartan Pharmaclan |
Date of the Last Revision of this Leaflet
May 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/