Irbesartan/Hydrochlorothiazide Activase Pharmaceuticals (Hydrochlorothiazide, Irbesartan)

Irbesartan/Hydrochlorothiazide, the active ingredient in Irbesartan/Hydrochlorothiazide Activase Pharmaceuticals, is an angiotensin II receptor blocker/thiazide diuretic combination presented as a tablet for oral use. It is indicated for the management of hypertension in adult patients, often when monotherapy does not achieve target blood pressure. GNH USA supplies Irbesartan/Hydrochlorothiazide Activase Pharmaceuticals as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Irbesartan/Hydrochlorothiazide acts on the renin‑angiotensin‑aldosterone system and renal sodium handling to lower blood pressure. It is used for the following recognized indications: - Essential hypertension: reduces systolic and diastolic blood pressure in adults. - Hypertension requiring combination therapy: provides additive pressure‑lowering when a single agent is insufficient. - Hypertension with fluid retention: adds diuretic effect to control volume overload and improve blood‑pressure control.

Common Side Effects: - Dizziness or light‑headedness. - Headache. - Fatigue or weakness. - Increased urinary frequency. - Mild electrolyte disturbances, such as low potassium. - Nausea or mild gastrointestinal upset.

Serious or Rare Side Effects: - Severe dehydration or electrolyte imbalance. - Acute kidney injury or worsening renal function. - Hyperkalemia. - Marked hypotension. - Allergic reactions, including rash or angioedema. - Rare cases of pancreatitis.

Before initiating therapy, clinicians should consider several safety measures: - Renal function monitoring: assess serum creatinine and eGFR regularly. - Electrolyte assessment: check potassium and sodium levels, especially with diuretic use. - Hepatic impairment: use with caution in patients with severe liver disease. - Diabetes mellitus: monitor blood glucose as thiazides may affect glycemic control. - Concomitant NSAIDs: avoid or use cautiously due to increased risk of renal dysfunction. - Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Irbesartan/Hydrochlorothiazide may interact with several drug classes: Major Interactions (Avoid): - Aliskiren in diabetic patients: increased risk of renal impairment. - Potassium‑sparing diuretics or supplements: risk of hyperkalemia. - Dual renin‑angiotensin blockade (ACE inhibitor or another ARB): heightened hypotension and renal risk. - NSAIDs: may reduce antihypertensive effect and impair renal function. - Lithium: increased lithium levels and toxicity.

Moderate Interactions (Monitor Closely): - Additional thiazide diuretics: monitor electrolytes and volume status. - CYP2C9 inhibitors (e.g., fluconazole): may raise irbesartan concentrations. - Antacids containing aluminum or magnesium: may reduce absorption of irbesartan. - Digoxin: possible alteration of serum digoxin levels. - Warfarin: monitor INR for potential changes in anticoagulation.