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Losartan Potassium + Hydrochlorothiazide: Brands, Price & Uses in Bangladesh
Losartan Potassium + Hydrochlorothiazide is a fixed-dose combination antihypertensive used in the following situations: Established/FDA-approved uses Hypertension requiring combination therapy:…
About Losartan Potassium + Hydrochlorothiazide
Indications of Losartan Potassium + Hydrochlorothiazide
Losartan Potassium + Hydrochlorothiazide is a fixed-dose combination antihypertensive used in the following situations:
Established/FDA-approved uses
- Hypertension requiring combination therapy: Treatment of high blood pressure in adult patients who are not adequately controlled on either losartan or hydrochlorothiazide alone, or as initial therapy in patients likely to need multiple drugs to reach their blood pressure goal.
- Risk reduction of stroke: In hypertensive patients with left ventricular hypertrophy (an enlarged heart muscle), Losartan Potassium + Hydrochlorothiazide-containing regimens (starting with losartan) reduce the risk of stroke; this specific benefit has not been shown in Black patients.
Losartan Potassium + Hydrochlorothiazide is not intended as first-line initial therapy for patients whose blood pressure can be controlled by a single agent; it is reserved for patients needing combination treatment.
Dosage & Administration of Losartan Potassium + Hydrochlorothiazide
Losartan Potassium + Hydrochlorothiazide should be taken exactly as prescribed by a physician. It may be taken with or without food, at approximately the same time each day, with a full glass of water.
Adult dosing for hypertension
| Clinical situation | Typical starting dose | Titration / maximum |
|---|---|---|
| Standard hypertension needing combination therapy | 50 mg/12.5 mg once daily | May increase after about 3 weeks to 100 mg/25 mg once daily based on response; maximum 100 mg/25 mg once daily |
| More severe hypertension | 50 mg/12.5 mg once daily | May be increased after 2-4 weeks to 100 mg/25 mg once daily if blood pressure remains uncontrolled |
Renal impairment
Standard dosing may be used while kidney function is only mildly to moderately reduced; safety has not been established in patients with severe renal impairment, and thiazide diuretics are generally less effective as kidney function worsens (see Use in Special Populations).
Hepatic impairment
Losartan Potassium + Hydrochlorothiazide is generally not used to start therapy in patients with hepatic impairment, since an appropriately low starting dose of the losartan component is not available in this fixed combination; individual-component titration is preferred first.
Missing a dose: take it as soon as remembered unless it is nearly time for the next dose, in which case skip the missed dose - do not double the dose. Do not stop or change the dose without consulting the prescribing physician, as abruptly stopping antihypertensive therapy can lead to a rebound rise in blood pressure.
Side Effects of Losartan Potassium + Hydrochlorothiazide
Most patients tolerate Losartan Potassium + Hydrochlorothiazide well. Reported side effects include:
Common
- Dizziness or lightheadedness
- Upper respiratory tract infection symptoms
- Cough
- Back pain
- Fatigue
Less common but clinically important
- Electrolyte disturbances - hyperkalemia, hyponatremia, or hypokalemia (see Precautions and Warnings)
- Increased blood uric acid levels or gout flare
- Increased blood glucose
- Photosensitivity (increased sun sensitivity/skin reaction)
- Changes in kidney function tests
Rare but serious
- Angioedema (swelling of the face, lips, tongue, or throat) - seek emergency care immediately if this occurs
- Significant drop in blood pressure, particularly after the first dose in volume-depleted patients
- Severe skin reactions
Patients should report any unusual or persistent symptoms to their physician.
Contraindications of Losartan Potassium + Hydrochlorothiazide
Losartan Potassium + Hydrochlorothiazide is contraindicated in the following situations:
- Known hypersensitivity to losartan, hydrochlorothiazide, other sulfonamide-derived drugs, or any component of the formulation.
- Anuria (inability to produce urine).
- Pregnancy - Losartan Potassium + Hydrochlorothiazide must not be used in pregnant patients; discontinue immediately if pregnancy is detected (see Pregnancy and Lactation).
- Concomitant use with aliskiren in patients with diabetes mellitus.
Frequently Asked Questions about Losartan Potassium + Hydrochlorothiazide
What is Losartan Potassium + Hydrochlorothiazide used for?
Losartan Potassium + Hydrochlorothiazide is used to treat high blood pressure (hypertension) in patients who need more than one medicine to control it. It also helps lower the risk of stroke in hypertensive patients with left ventricular hypertrophy (an enlarged heart muscle), though this specific stroke-prevention benefit has not been shown in Black patients.
How should I take Losartan Potassium + Hydrochlorothiazide?
Take Losartan Potassium + Hydrochlorothiazide exactly as prescribed by your physician, usually once daily with or without food, at the same time each day. The usual starting dose is 50 mg/12.5 mg once daily, which your doctor may increase up to a maximum of 100 mg/25 mg once daily depending on your blood pressure response. Do not change your dose or stop the medicine without consulting your physician.
Can I take Losartan Potassium + Hydrochlorothiazide during pregnancy?
No. Losartan Potassium + Hydrochlorothiazide is contraindicated in pregnancy because it can cause serious injury or death to the developing fetus, especially in the second and third trimesters. If you become pregnant while taking this medicine, stop it and contact your physician immediately so an alternative treatment can be started.
What are the common side effects of Losartan Potassium + Hydrochlorothiazide?
Common side effects include dizziness, cough, back pain, symptoms of upper respiratory infection, and fatigue. It can also cause changes in blood potassium, sodium, uric acid, or blood sugar levels, and may increase sensitivity to sunlight. Rarely, it can cause a serious allergic reaction called angioedema (swelling of the face, lips, tongue, or throat), which needs emergency medical attention.
Who should not take Losartan Potassium + Hydrochlorothiazide?
People who are allergic to losartan, hydrochlorothiazide, or sulfonamide-derived drugs should not take it, nor should people with anuria (no urine production) or who are pregnant. It should also not be combined with aliskiren in patients with diabetes. Always share your full medical history with your physician before starting this medicine.
What should I do if I miss a dose or take too much Losartan Potassium + Hydrochlorothiazide?
If you miss a dose, take it as soon as you remember unless it is almost time for your next dose - in that case, skip the missed dose and continue your normal schedule; do not double up. If you or someone else has taken too much Losartan Potassium + Hydrochlorothiazide, seek immediate medical attention or contact emergency services/a poison control center right away, as overdose can cause dangerously low blood pressure and electrolyte imbalances.
Disclaimer
The information provided is accurate to the best of our knowledge, but it does not replace professional medical advice. We cannot guarantee its completeness or accuracy, and the absence of specific information about a drug should not be taken as an endorsement. We are not responsible for any consequences arising from this information, so please consult a healthcare professional for any concerns or questions.