Innozide (Enalapril Maleate, Hydrochlorothiazide)

• Innozide combines an ACE inhibitor with a thiazide diuretic to manage conditions related to high blood pressure.
• Hypertension: reduces systolic and diastolic blood pressure in patients with essential hypertension.
• Congestive heart failure: improves fluid balance and decreases cardiac workload in chronic heart failure.
• Edema associated with renal or hepatic disease: promotes diuresis to alleviate fluid retention in secondary edema.

• Enalapril maleate blocks the conversion of angiotensin I to the vasoconstrictor angiotensin II by inhibiting angiotensin‑converting enzyme, leading to vasodilation and reduced aldosterone secretion. Hydrochlorothiazide acts on the distal convoluted tubule, inhibiting NaCl reabsorption, which increases urinary excretion of sodium and water and lowers plasma volume. This dual mechanism helps achieve target blood pressure more rapidly than either component alone.

Innozide may cause a range of adverse reactions, varying from mild to severe.

Common Side Effects

• Cough: dry, persistent cough in some patients.
• Dizziness: light‑headedness, especially after standing.
• Headache: mild to moderate headache.
• Increased urination: due to the diuretic effect.

Serious or Rare Side Effects

• Angioedema: swelling of face, lips, tongue, or airway.
• Severe hypotension: marked drop in blood pressure causing faintness.
• Renal impairment: worsening kidney function.
• Hyperkalemia: elevated potassium levels that can affect heart rhythm.

Before prescribing Innozide, several safety considerations should be observed.

• Monitor blood pressure: ensure adequate control and avoid excessive hypotension.
• Assess renal function: check serum creatinine and eGFR before and during therapy.
• Check electrolytes: especially potassium and sodium levels regularly.
• Avoid use in pregnancy: potential risk to the fetus, contraindicated.
• Use caution in elderly patients: increased sensitivity to blood‑pressure changes.
• Store below 25°C: keep in the original packaging, protect from moisture and light.

Innozide can interact with several medicines, requiring attention to avoid harmful effects.

Major Interactions (Avoid)

• Aliskiren: combined use may increase risk of renal dysfunction.
• Potassium‑sparing diuretics or supplements: can cause hyperkalemia.
• Lithium: ACE inhibition may raise lithium levels, risking toxicity.

Moderate Interactions (Monitor Closely)

• NSAIDs: may blunt antihypertensive effect and affect renal function.
• Other antihypertensives: additive blood‑pressure lowering may require dose adjustment.