Losartan 50 mg (Losartan Potassium)

Adult dose

This medication can be taken regardless of meals, but it is recommended to take it at the same time each day. For hypertension treatment, administer 50 mg orally once daily as Losartan Potassium. Maximum blood pressure lowering effect occurs 3–6 weeks after treatment initiation. If the therapeutic effect is insufficient, it can be divided into two doses per day, or increased to a maximum of 100 mg once daily.

Child dose

For children and adolescents aged 6 years and older, it is recommended as follows: For patients weighing 20 kg or more but less than 50 kg, administer 25 mg once daily and increase to a maximum of 50 mg per day based on blood pressure response.

This drug can cause serious harm to the fetus when taken during pregnancy, especially in the second and third trimesters. Therefore, women who are pregnant or might become pregnant should not take this medication. Patients who have an allergic reaction to this drug or have severely impaired liver function, as well as those with certain genetic disorders should not use this medication. Elderly patients, patients with weak kidney function, and patients at risk of significantly low blood pressure should exercise extra caution when using this drug and should take it cautiously as directed by their physician. While using this medication, it is necessary to regularly check blood pressure, kidney function, serum potassium levels, etc., for any abnormalities, as hyperkalemia may occur. It is advisable not to take potassium supplements or medications containing potassium simultaneously. This drug lowers blood pressure, so if symptoms of hypotension (dizziness, fainting, etc.) occur, consult a doctor immediately, and in serious cases, discontinuation may be necessary. Occasionally, allergic reactions such as skin rashes, hives, and angioedema may occur, so it is crucial to inform medical personnel immediately if such symptoms develop. Use caution while driving or operating machinery during treatment, especially at the onset of therapy or when changing the dose. Moreover, taking this medication with grapefruit juice may decrease its effectiveness, so it is best to avoid grapefruit juice. Women who are pregnant or breastfeeding should not take this medication and should consult a physician for alternative treatment options if necessary. This drug is not to be used in children, particularly those under 6 years old or in children with significantly impaired kidney function. In case of overdose, symptoms such as hypotension and heart rate abnormalities may occur, requiring immediate medical treatment, and this drug is not eliminated by dialysis, so emergency treatment is necessary.

Serious side effects

Hives, severe swelling (edema), chest tightness, difficulty breathing, cold sweat, pallor, angioedema (laryngeal/pharyngeal swelling that can cause airway obstruction, swelling of the face/lips/pharynx/tongue), anaphylaxis-like syndrome (discomfort, oral dysesthesia, sweating, hives, difficulty breathing, generalized flushing, edema), severe rashes with high fever, blisters, skin peeling, oral/ocular mucosal pain, dyspnea or difficulty breathing.

Mild side effects

Nausea, diarrhea, dyspepsia, cough, sinusitis, pharyngitis, myalgia, insomnia, headache, weakness/fatigue, edema/swelling, abdominal pain, chest pain, swelling of the lips and eyelids, facial rash, peeling of thin skin on the palms, hemolysis, facial swelling, fever, orthostatic effects, syncope, angina, 2nd-degree atrioventricular block, cerebrovascular accident, hypotension, arrhythmias accompanying myocardial infarction and atrial fibrillation, palpitations, bradycardia, tachycardia, ventricular tachycardia, and heart problems.

Store this medication in a tightly closed container to prevent air and moisture from entering. It is best to keep it at room temperature between 1°C and 30°C. Storing it this way helps maintain the drug's efficacy over time.

Appearance

White oval film-coated tablet

Package unit

30 tablets/bottle, 100 tablets/bottle