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# Hydrochlorothiazide 12.5 mg + Losartan 25 mg ## SHORT DESCRIPTION **Hydrochlorothiazide 12.5 mg + Losartan 25 mg** is a combination medicine used primarily to treat **high blood pressure (hypertension)**. It combines an **angiotensin II receptor blocker (ARB)**, losartan, with a **thiazide diuretic**, hydrochlorothiazide. Losartan relaxes blood vessels and reduces the effects of angiotensin II, while hydrochlorothiazide helps the body remove excess sodium and water through urine. Together, they can provide complementary blood-pressure-lowering effects. ## KEY BENEFITS * Helps lower high blood pressure * Provides two complementary mechanisms for blood-pressure control * Helps relax and widen blood vessels * Helps remove excess sodium and fluid from the body * May help reduce the risk of cardiovascular complications associated with uncontrolled hypertension * May be useful when blood pressure is not adequately controlled with a single medicine ## USES / INDICATIONS Hydrochlorothiazide + Losartan may be prescribed for: * **Hypertension (high blood pressure)** * Blood pressure that remains elevated despite treatment with one antihypertensive medicine * Patients who require combination therapy for better blood-pressure control Losartan may also have specific cardiovascular or kidney-related indications depending on the patient and product, but the **fixed-dose combination is primarily used for hypertension**. ## HOW IT WORKS ### Losartan Losartan is an **angiotensin II receptor blocker (ARB)**. It blocks the action of angiotensin II at AT1 receptors. Angiotensin II normally causes blood vessels to constrict and promotes sodium and water retention. Blocking its action helps: * Relax blood vessels * Lower blood pressure * Reduce the workload on the heart ### Hydrochlorothiazide Hydrochlorothiazide is a **thiazide diuretic**. It increases the excretion of sodium and water through the kidneys. This reduces excess fluid and contributes to lower blood pressure. **Losartan → Blocks angiotensin II → Blood vessels relax → Blood pressure decreases** **Hydrochlorothiazide → Increased sodium and water excretion → Reduced fluid volume → Blood pressure decreases** ## DOSAGE & ADMINISTRATION The exact dose should be determined by your doctor based on your blood pressure, kidney function, response to treatment, and other medicines. For the **12.5 mg hydrochlorothiazide + 25 mg losartan** strength: * Take exactly as prescribed. * It is generally taken **once daily**, but follow your prescription. * Take the tablet with water. * It may be taken with or without food. * Take it at approximately the same time each day. * Because hydrochlorothiazide increases urination, taking it earlier in the day may be preferable for some patients. * Do not change the dose without medical advice. ### Missed Dose Take the missed dose when you remember unless it is nearly time for your next dose. **Do not take two doses together.** ## SIDE EFFECTS Common side effects may include: * Dizziness * Headache * Increased urination * Fatigue * Low blood pressure * Muscle cramps * Weakness * Nausea Hydrochlorothiazide may cause changes in electrolyte levels, including: * Low potassium * Low sodium * Low magnesium * Increased calcium levels Losartan may occasionally cause: * Increased potassium * Changes in kidney function ### Serious Side Effects Seek medical attention if you experience: * Severe dizziness or fainting * Significant reduction in urine output * Severe weakness or confusion * Irregular heartbeat * Severe muscle weakness or cramps * Swelling of the face, lips, tongue, or throat * Difficulty breathing * Severe allergic reaction ## PRECAUTIONS & WARNINGS ### Pregnancy **Losartan should not be used during pregnancy**, particularly during the second and third trimesters, because medicines that act on the renin-angiotensin system can cause serious fetal harm. Tell your doctor immediately if you become pregnant while taking this medicine. ### Kidney Disease Losartan and hydrochlorothiazide affect kidney function and fluid balance. Your doctor may monitor **serum creatinine and kidney function** during treatment. ### Dehydration Hydrochlorothiazide increases urine production. Excessive fluid loss can cause dehydration, dizziness, or low blood pressure. ### Electrolyte Imbalance Treatment can alter potassium, sodium, magnesium, calcium, and other electrolyte levels. Blood tests may be required. ### High Potassium Losartan can increase potassium levels in some patients. Avoid potassium supplements or potassium-containing salt substitutes unless your doctor recommends them. ### Liver Disease Tell your doctor if you have liver disease, as dose selection and monitoring may need adjustment. ### Low Blood Pressure Dizziness or fainting may occur, particularly when starting treatment, after increasing the dose, or if you are dehydrated. ### Diabetes Hydrochlorothiazide can affect blood glucose levels. People with diabetes may require closer glucose monitoring. ### Gout Hydrochlorothiazide can increase uric acid levels and may worsen gout in some patients. ### Sun Sensitivity Hydrochlorothiazide can increase sensitivity to sunlight. Use appropriate sun protection and report unusual skin reactions. ### Surgery Tell your doctor or anesthetist that you are taking this medicine before surgery. ## DRUG INTERACTIONS This combination may interact with: * **Potassium supplements** * Potassium-containing salt substitutes * Potassium-sparing diuretics such as spironolactone * Other blood-pressure medicines * NSAIDs such as ibuprofen or naproxen * Lithium * Certain medicines affecting kidney function * Other diuretics * Certain diabetes medicines * Corticosteroids * Digoxin and other medicines affected by electrolyte changes ### NSAIDs Regular use of NSAIDs may reduce the blood-pressure-lowering effect and may increase the risk of kidney problems, particularly in people who are dehydrated or have impaired kidney function. ### Lithium Hydrochlorothiazide can increase lithium concentrations and potentially cause lithium toxicity. This combination generally requires medical supervision and monitoring. Always tell your doctor or pharmacist about all prescription medicines, over-the-counter medicines, supplements, and herbal products you take. ## STORAGE INFORMATION * Store according to the manufacturer's instructions. * Keep at room temperature unless otherwise specified. * Protect from excessive heat, moisture, and direct sunlight. * Keep tablets in their original packaging. * Keep the container tightly closed. * Keep out of reach and sight of children. * Do not use after the expiry date. * Do not use tablets if the packaging is damaged. ## PRESCRIPTION STATUS **Hydrochlorothiazide 12.5 mg + Losartan 25 mg is generally a prescription medicine.** Because this combination affects blood pressure, kidney function, and electrolyte balance, it should be used under the supervision of a qualified healthcare professional. ## GENUINE MEDICINE ASSURANCE To help ensure you receive genuine Hydrochlorothiazide + Losartan: * Purchase from a licensed and reputable pharmacy. * Check the medicine name and strengths. * Verify the manufacturer's details. * Check the batch number and expiry date. * Ensure the packaging is sealed and undamaged. * Check that the tablets and packaging match the manufacturer's description. * Avoid products with suspicious or altered labels. * Purchase medicines only from authorized suppliers. * Consult a pharmacist if you have concerns about authenticity. ## FAQ SECTION ### What is Hydrochlorothiazide 12.5 mg + Losartan 25 mg used for? It is primarily used to **treat high blood pressure (hypertension)**. It combines losartan, an ARB, with hydrochlorothiazide, a diuretic. ### Is Losartan a diuretic? No. Losartan is an **angiotensin II receptor blocker (ARB)**. Hydrochlorothiazide is the diuretic component of this combination. ### What does Hydrochlorothiazide do? Hydrochlorothiazide helps the kidneys remove excess sodium and water, reducing fluid volume and helping lower blood pressure. ### What does Losartan do? Losartan blocks the effects of angiotensin II, helping blood vessels relax and lowering blood pressure. ### Why are Losartan and Hydrochlorothiazide combined? The two medicines lower blood pressure through **different but complementary mechanisms**, which can provide better control than either medicine alone for some patients. ### Does Hydrochlorothiazide + Losartan lower blood pressure? Yes. The combination is specifically used to lower and control elevated blood pressure. ### Does Hydrochlorothiazide make you urinate more? Yes. Hydrochlorothiazide increases urine production, particularly after taking a dose. ### What is the best time to take Hydrochlorothiazide + Losartan? It is commonly taken once daily. Because hydrochlorothiazide can increase urination, some people prefer taking it in the morning. Follow your doctor's specific instructions. ### Can I take Hydrochlorothiazide + Losartan with food? Yes, it can generally be taken with or without food. Try to take it consistently at approximately the same time each day. ### Can Hydrochlorothiazide + Losartan cause dizziness? Yes. Dizziness can occur because the medicine lowers blood pressure and can increase fluid loss. Rise slowly from sitting or lying down. ### Can this medicine cause low potassium? Hydrochlorothiazide can lower potassium levels, while losartan can increase potassium. The overall effect varies between individuals, so your doctor may monitor potassium levels with blood tests. ### Can Hydrochlorothiazide + Losartan increase potassium? Losartan can increase potassium in some patients. Do not take potassium supplements or potassium-containing salt substitutes without medical advice. ### Can Hydrochlorothiazide + Losartan affect the kidneys? It can affect kidney function in some patients. Kidney function and electrolyte levels may be monitored, particularly in people with kidney disease or those taking medicines that affect the kidneys. ### Can I take ibuprofen with Losartan and Hydrochlorothiazide? Regular NSAID use, including ibuprofen, may reduce the blood-pressure-lowering effect and increase the risk of kidney problems. Consult your doctor before using NSAIDs regularly. ### Can I take Losartan + Hydrochlorothiazide with other blood pressure medicines? It may be combined with other medicines when prescribed, but blood pressure and kidney function may require monitoring. ### Can I take potassium supplements with this medicine? Do not take potassium supplements or potassium-containing salt substitutes unless specifically recommended by your healthcare professional. ### Can people with diabetes take this medicine? It may be prescribed to people with diabetes, but hydrochlorothiazide can affect blood glucose levels. Regular monitoring may be necessary. ### Can this medicine worsen gout? Hydrochlorothiazide can increase uric acid levels and may worsen gout in susceptible individuals. Tell your doctor if you have gout. ### Can Hydrochlorothiazide + Losartan be taken during pregnancy? **Losartan should not be used during pregnancy.** Contact your doctor immediately if you become pregnant while taking this medicine. ### Can I take this medicine while breastfeeding? Consult your healthcare professional before using this combination while breastfeeding. An alternative treatment may be considered depending on the circumstances. ### Can I drink alcohol while taking Losartan + Hydrochlorothiazide? Alcohol may increase the risk of dizziness, low blood pressure, and dehydration. Discuss alcohol consumption with your healthcare professional. ### What happens if I miss a dose? Take it when you remember unless it is close to the next scheduled dose. Do not take two doses together. ### What happens if I take too much Hydrochlorothiazide + Losartan? An overdose may cause severe low blood pressure, dehydration, electrolyte abnormalities, dizziness, fainting, or changes in kidney function. Seek urgent medical attention if an overdose is suspected. ### Does this medicine cure high blood pressure? It helps **control** high blood pressure but does not permanently cure hypertension. Many patients require long-term treatment together with lifestyle measures. ### Should I stop this medicine if my blood pressure becomes normal? No. Normal blood pressure may indicate that the treatment is working. Do not stop or change the dose without consulting your doctor. ### How long does Hydrochlorothiazide + Losartan take to work? Blood-pressure reduction can begin after treatment starts, while the full therapeutic effect may take several weeks depending on the individual and dose. ### How should Hydrochlorothiazide + Losartan be stored? Store according to the manufacturer's instructions, generally at room temperature away from excessive heat, moisture, and direct sunlight. Keep it out of reach of children. ## MEDICAL DISCLAIMER This information about **Hydrochlorothiazide 12.5 mg + Losartan 25 mg** is provided for educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. This medicine can affect **blood pressure, kidney function, fluid balance, and electrolyte levels**. Medical monitoring may be required, particularly for people with kidney disease, diabetes, gout, dehydration, or cardiovascular conditions. **Losartan must not be used during pregnancy.** Contact a healthcare professional immediately if pregnancy occurs during treatment. Do not start, stop, or change the dose without medical advice. Always follow your doctor's prescription and the specific manufacturer's product information for safe and appropriate use.