Product image of Irbesartan/Hydrochloorthiazide Stada (Hydrochlorothiazide, Irbesartan) supplied by GNH India

Irbesartan/Hydrochloorthiazide Stada

Active Ingredient:
Hydrochlorothiazide, Irbesartan
Origin:
EU

Irbesartan/Hydrochloorthiazide Stada (Hydrochlorothiazide, Irbesartan)

Irbesartan, the active ingredient in Irbesartan/Hydrochloorthiazide Stada, is an Angiotensin II receptor blocker (ARB) presented as a fixed‑dose oral tablet for oral use. It treats hypertension in adult patients by lowering elevated blood pressure.

GNH India supplies Irbesartan/Hydrochloorthiazide Stada as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Stada Arzneimittel Ag

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Indications & Clinical Uses

Irbesartan/Hydrochlorothiazide is used in the management of hypertension, a condition characterized by chronically elevated arterial pressure.

  • Hypertension: reduces systolic and diastolic blood pressure, helping to prevent cardiovascular complications.
  • Essential hypertension: provides combined ARB and thiazide diuretic action for better blood‑pressure control.
  • High blood pressure: improves overall vascular resistance and fluid balance.

How It Works

  • Irbesartan selectively blocks angiotensin II type 1 (AT1) receptors, preventing vasoconstriction and aldosterone release, while hydrochlorothiazide inhibits sodium‑chloride reabsorption in the distal convoluted tubule, promoting diuresis. The combined effect lowers peripheral vascular resistance and reduces plasma volume, resulting in decreased blood pressure.

Side Effects

Common Side Effects

  • Dizziness: feeling light‑headed, especially after standing.
  • Headache: mild to moderate pain in the head region.
  • Fatigue: general tiredness or lack of energy.
  • Increased urination: more frequent bathroom visits due to diuretic action.
  • Electrolyte imbalance: mild reductions in potassium or sodium levels.
  • Mild gastrointestinal discomfort: occasional nausea or abdominal pain.

Serious or Rare Side Effects

  • Severe dehydration: marked fluid loss requiring medical attention.
  • Acute kidney injury: sudden decline in renal function.
  • Hyperkalemia: dangerously high potassium levels.
  • Allergic reactions: rash, itching, swelling, or anaphylaxis.
  • Blood disorders: leukopenia, thrombocytopenia, or agranulocytosis.
  • Hepatic dysfunction: elevated liver enzymes or hepatitis.

Precautions & Warnings

Before initiating therapy, consider the following precautions:

  • Blood pressure monitoring: regularly check to ensure therapeutic targets are met.
  • Renal function assessment: evaluate serum creatinine and eGFR, especially in patients with pre‑existing kidney disease.
  • Electrolyte surveillance: monitor potassium and sodium levels during treatment.
  • Caution in elderly: dose adjustments may be needed due to altered pharmacokinetics.
  • Avoid in severe hepatic impairment: limited data support safe use.
  • Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Avoid Interactions

Irbesartan/Hydrochlorothiazide may interact with several medicines. Review the following groups:

Major Interactions (Avoid)

  • Aliskiren: combined use can increase risk of renal dysfunction and hyperkalemia.
  • Potassium‑sparing diuretics: may cause dangerous elevations in serum potassium.
  • NSAIDs: can blunt antihypertensive effect and impair renal function.
  • Lithium: increased lithium levels leading to toxicity.
  • ACE inhibitors: additive risk of hyperkalemia and renal impairment.

Moderate Interactions (Monitor Closely)

  • Other thiazide diuretics: may enhance diuretic‑related electrolyte loss.
  • Antihypertensive agents: may require dose adjustment to avoid excessive hypotension.
  • Antidiabetic drugs: diuretic effect can alter glucose control.
  • Antidepressants (SSRIs): potential for increased hyponatremia.
  • Rifampin: may reduce plasma concentrations of irbesartan.

Frequently Asked Questions

Irbesartan/Hydrochlorothiazide is a fixed‑dose combination medication used to treat hypertension. By combining an angiotensin II receptor blocker with a thiazide diuretic, it helps lower blood pressure more effectively than either component alone, reducing the risk of cardiovascular events in patients with high blood pressure.

Irbesartan blocks the angiotensin II type 1 (AT1) receptors, preventing angiotensin II from causing vasoconstriction and stimulating aldosterone release. This leads to relaxation of blood vessels and reduced sodium and water retention, contributing to lower blood pressure.

The specific dose of Irbesartan/Hydrochlorothiazide is determined by the prescribing healthcare professional based on the patient’s clinical condition, blood pressure response, and renal function. Patients should follow the dosage instructions provided by their prescriber and not adjust the dose on their own.

Safety of Irbesartan/Hydrochlorothiazide during pregnancy has not been established, and it is generally avoided because of potential risks to the fetus. Limited data are available for breastfeeding; therefore, the medication should only be used if the benefits outweigh potential risks, under medical supervision.

To place an order, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details, and necessary import documentation.

Compared with monotherapy agents, the Irbesartan/Hydrochlorothiazide combination offers dual mechanisms—vascular relaxation and diuresis—in a single tablet, often achieving better blood‑pressure control and improving patient adherence. It is frequently preferred over separate prescriptions of an ARB and a thiazide diuretic.

Store the tablets at room temperature, below 25 °C, in the original packaging to protect them from moisture and light. Keep them out of reach of children and do not use if the packaging is damaged.

The medication is taken orally, usually once daily, with or without food, as directed by the prescriber. Swallow the tablet whole with a glass of water; do not crush or chew it unless specifically instructed.

Serious risks include severe dehydration, acute kidney injury, hyperkalemia, and allergic reactions such as anaphylaxis. Patients should seek immediate medical attention if they experience symptoms like rapid weight loss, swelling, difficulty breathing, or a sudden drop in urine output.

Individuals with known hypersensitivity to irbesartan, hydrochlorothiazide, or any component of the formulation should avoid this medication. It is also contraindicated in patients with severe renal impairment, anuria, or those taking potassium‑sparing diuretics without close monitoring.

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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