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# Hydrochlorothiazide 12.5 mg + Losartan 50 mg ## Short Description **Hydrochlorothiazide 12.5 mg + Losartan 50 mg** is a prescription combination medicine used primarily to treat **high blood pressure (hypertension)**. It combines an angiotensin II receptor blocker (ARB), **losartan**, with a thiazide diuretic, **hydrochlorothiazide**. The combination lowers blood pressure through two complementary mechanisms and may help reduce the risk of cardiovascular complications associated with uncontrolled hypertension. ## Key Benefits * Helps **lower and control high blood pressure**. * Combines two complementary blood-pressure-lowering mechanisms. * **Losartan** helps relax blood vessels and reduce the effects of angiotensin II. * **Hydrochlorothiazide** helps remove excess sodium and water through urine. * May provide greater blood-pressure reduction than either component alone in appropriate patients. * Helps reduce the long-term risk of complications associated with uncontrolled hypertension. ## Uses / Indications Hydrochlorothiazide 12.5 mg + Losartan 50 mg is primarily used for: * **Hypertension (high blood pressure)** * Blood-pressure control when treatment with one medicine alone is insufficient. * Patients who are appropriately selected for combination therapy with an ARB and a thiazide diuretic. Controlling blood pressure may help reduce the risk of complications such as **stroke, heart attack, heart failure, and kidney damage**. ## 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 narrow and promotes sodium retention. Blocking its action: * Relaxes blood vessels. * Reduces vascular resistance. * Decreases blood pressure. * Reduces aldosterone-related sodium and fluid retention. ### Hydrochlorothiazide Hydrochlorothiazide is a **thiazide diuretic**. It increases the excretion of sodium and water through the kidneys. This: * Reduces excess fluid volume. * Decreases blood volume. * Helps lower blood pressure. Together, losartan and hydrochlorothiazide provide complementary blood-pressure-lowering effects. ## Dosage & Administration * Take Hydrochlorothiazide 12.5 mg + Losartan 50 mg **exactly as prescribed**. * It is generally taken **once daily**, but follow your doctor's instructions. * It may be taken with or without food. * Take it at approximately the same time every day. * Because hydrochlorothiazide increases urination, taking it earlier in the day may be preferable for some patients. * Continue taking the medicine even if you feel well. High blood pressure often has **no noticeable symptoms**. * Do not stop treatment without consulting your doctor. ### Missed Dose If you miss a dose, take it when you remember unless it is nearly time for your next dose. If it is close to the next dose, skip the missed dose. **Do not take two doses together** to make up for a missed dose. ## Side Effects Common or possible side effects include: * Dizziness * Headache * Increased urination * Fatigue * Low blood pressure * Mild stomach upset * Changes in blood potassium levels * Increased blood uric acid levels * Muscle cramps Hydrochlorothiazide can affect electrolytes and fluid balance, while losartan may alter potassium levels. ### Serious Side Effects Seek medical attention if you experience: * Severe dizziness or fainting * Significant dehydration * Severe or persistent vomiting or diarrhea * Muscle weakness or abnormal heartbeat * Swelling of the face, lips, tongue, or throat * Difficulty breathing * Severe skin reactions * Significant reduction in urine output * Symptoms suggesting kidney problems ## Precautions & Warnings * **Pregnancy:** Losartan can cause serious harm to an unborn baby and should not be used during pregnancy. Contact your doctor immediately if pregnancy occurs. * Tell your doctor if you have **kidney disease, liver disease, heart disease, or electrolyte abnormalities**. * Regular monitoring of **blood pressure, kidney function, sodium, and potassium** may be recommended. * The medicine can cause dizziness, particularly when starting treatment or increasing the dose. * Maintain adequate fluid intake unless your doctor has prescribed fluid restriction. * Excessive sweating, vomiting, or diarrhea can increase the risk of dehydration and low blood pressure. * Hydrochlorothiazide can increase **uric acid levels** and may worsen gout in susceptible individuals. * Hydrochlorothiazide may affect blood glucose levels in some patients. * Tell your doctor if you have a history of **skin cancer**, as hydrochlorothiazide has been associated with an increased risk of certain skin cancers with cumulative exposure. * Avoid potassium supplements or potassium-containing salt substitutes unless recommended by your healthcare professional. ## Drug Interactions Hydrochlorothiazide + Losartan can interact with several medicines, including: * **Potassium supplements and potassium-containing salt substitutes** – may increase potassium levels, particularly because of losartan. * **Potassium-sparing diuretics** such as spironolactone, amiloride, and triamterene – may increase potassium. * **ACE inhibitors or other ARBs** – combined use may increase the risk of kidney problems, low blood pressure, and abnormal potassium levels. * **NSAIDs** such as ibuprofen and naproxen – may reduce the blood-pressure-lowering effect and increase the risk of kidney problems. * **Lithium** – hydrochlorothiazide and losartan may increase lithium concentrations and toxicity risk. * Other antihypertensive medicines – may cause an additive reduction in blood pressure. * **Diabetes medicines** – hydrochlorothiazide may affect blood glucose control. * **Digoxin** – electrolyte disturbances may increase the risk of adverse effects. * Certain medicines that affect electrolyte balance may increase the risk of abnormal potassium or sodium levels. Always inform your doctor or pharmacist about **all prescription medicines, over-the-counter medicines, vitamins, and herbal supplements** you use. ## Storage Information * Store Hydrochlorothiazide 12.5 mg + Losartan 50 mg according to the temperature specified on the product packaging. * Keep the medicine in a **dry place away from excessive heat and moisture**. * Protect from direct sunlight. * Keep the tablets in their original packaging. * Keep out of reach of children and pets. * Do not use after the expiry date. * Do not use tablets that appear damaged or altered. ## Prescription Status **Prescription medicine.** Hydrochlorothiazide + Losartan should be taken under the supervision of a qualified healthcare professional. Regular blood-pressure and, when appropriate, kidney-function and electrolyte monitoring may be necessary. ## Genuine Medicine Assurance To help ensure you receive genuine Hydrochlorothiazide 12.5 mg + Losartan 50 mg: * Purchase the medicine from a **licensed pharmacy or authorized medicine supplier**. * Check the medicine name, strength, manufacturer, batch/lot number, and expiry date. * Inspect packaging for signs of tampering or damage. * Do not purchase medicines from unreliable or unauthorized sources. * Store the medicine according to the manufacturer's instructions. * If authenticity is uncertain, consult a pharmacist or contact the manufacturer using the information printed on the package. ## Frequently Asked Questions (FAQ) ### What is Hydrochlorothiazide 12.5 mg + Losartan 50 mg used for? It is primarily used to treat **high blood pressure (hypertension)**. The combination lowers blood pressure through the complementary effects of losartan and hydrochlorothiazide. ### Is Losartan 50 mg + Hydrochlorothiazide 12.5 mg a blood-pressure medicine? Yes. It is a combination **antihypertensive medicine** containing an ARB and a thiazide diuretic. ### How does Losartan lower blood pressure? Losartan blocks the action of **angiotensin II**, a hormone that causes blood vessels to narrow and promotes sodium retention. This helps blood vessels relax and lowers blood pressure. ### How does Hydrochlorothiazide lower blood pressure? Hydrochlorothiazide increases the kidneys' excretion of **sodium and water**, reducing fluid volume and helping lower blood pressure. ### Can I take Losartan + Hydrochlorothiazide if my blood pressure is normal? Do not change or stop your medication simply because your blood pressure has improved. The normal reading may be a result of the treatment. Discuss any dose changes with your doctor. ### Does Losartan + Hydrochlorothiazide cause frequent urination? Yes. Hydrochlorothiazide increases urine production, particularly after taking a dose. This effect may become less noticeable as your body adjusts. ### What happens if I miss a dose? Take it when you remember unless it is almost time for the next dose. If it is close to the next dose, skip it and return to your normal schedule. **Do not double the dose.** ### Can I take Losartan + Hydrochlorothiazide during pregnancy? **Losartan should not be used during pregnancy** because medicines that act on the renin-angiotensin system can cause serious fetal harm. Contact your doctor immediately if you become pregnant while taking this medicine. ### Can I take potassium supplements with Losartan + Hydrochlorothiazide? Do not take potassium supplements or potassium-containing salt substitutes unless your doctor recommends them. Losartan can increase potassium levels, while hydrochlorothiazide can lower them, so individual monitoring may be necessary. ### Can I take ibuprofen with Losartan + Hydrochlorothiazide? NSAIDs such as ibuprofen can reduce the blood-pressure-lowering effect and may increase the risk of **kidney problems**, particularly in people who are dehydrated or have existing kidney disease. Consult your healthcare professional before regular NSAID use. ### Does Losartan + Hydrochlorothiazide protect the kidneys? Losartan can have kidney-protective benefits in certain patients, particularly those with hypertension and some forms of kidney disease. However, the combination is **not suitable for everyone with kidney disease**, and kidney function should be monitored. ### Can Losartan + Hydrochlorothiazide cause dizziness? Yes. Dizziness can occur because the medicine lowers blood pressure. It may be more noticeable when starting treatment or standing up quickly. ### Can I drink alcohol while taking Losartan + Hydrochlorothiazide? Alcohol can increase the blood-pressure-lowering effect and may worsen **dizziness or lightheadedness**. Discuss alcohol consumption with your healthcare professional. ### Does Hydrochlorothiazide affect blood sugar? It can cause changes in blood glucose in some people. Patients with diabetes may require closer monitoring of blood sugar after starting or changing treatment. ### Does Hydrochlorothiazide cause gout? Hydrochlorothiazide can increase **uric acid levels**, which may trigger or worsen gout in susceptible individuals. Tell your doctor if you have a history of gout. ### How long does Losartan + Hydrochlorothiazide take to work? Blood pressure can begin to decrease after treatment starts, but the **full blood-pressure-lowering effect may take several weeks**. Your doctor may monitor your blood pressure and adjust treatment if necessary. ### Can I stop Losartan + Hydrochlorothiazide suddenly? Do not stop the medicine without medical advice. Although stopping it does not typically cause a withdrawal syndrome, uncontrolled hypertension can return and increase the risk of cardiovascular complications. ## Medical Disclaimer This information about **Hydrochlorothiazide 12.5 mg + Losartan 50 mg** is provided for educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. The appropriate treatment and dose depend on blood pressure, kidney function, electrolyte levels, other medical conditions, and concurrent medicines. **Do not start, stop, or change the dose without consulting a qualified healthcare professional.** **Important:** Losartan can cause serious fetal harm and should not be used during pregnancy. Seek medical advice immediately if pregnancy occurs while taking this medicine. Always read the product label and package insert supplied with your specific product and consult your doctor or pharmacist for product-specific instructions.