Lercanidipine Hydrochloride Amarox (Lercanidipine Hydrochloride Hemihydrate)

• Lercanidipine hydrochloride is a dihydropyridine calcium channel blocker used to manage elevated arterial pressure.
• Hypertension: lowers systolic and diastolic blood pressure and reduces cardiovascular risk.
• Essential hypertension: provides sustained blood pressure control in primary hypertension.
• Isolated systolic hypertension: improves pulse pressure in elderly patients with elevated systolic values.

• Lercanidipine selectively blocks L-type calcium channels in vascular smooth muscle, inhibiting calcium influx that is necessary for contraction. This results in arterial vasodilation, decreased peripheral resistance, and ultimately a reduction in systemic blood pressure without significant negative inotropic effects on the heart.

Lercanidipine may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

• Headache: mild to moderate intensity, often transient.
• Flushing: warmth and redness, usually resolves with continued therapy.
• Peripheral edema: swelling of ankles or lower legs.
• Dizziness or light‑headedness, especially after standing.
• Palpitations or tachycardia.

Serious or Rare Side Effects

• Severe hypotension: marked drop in blood pressure requiring medical attention.
• Myocardial infarction: rare but reported in susceptible individuals.
• Hepatic dysfunction: elevated liver enzymes or hepatitis.
• Angioedema: swelling of face, lips, or throat.
• Severe allergic reactions: rash, itching, or anaphylaxis.

• Before initiating therapy, clinicians should evaluate patient‑specific factors and monitor for potential complications.
• Monitor blood pressure: adjust dose based on response and avoid excessive hypotension.
• Assess liver function: use with caution in patients with hepatic impairment.
• Caution in elderly: increased sensitivity to vasodilatory effects may occur.
• Avoid abrupt discontinuation: tapering may reduce rebound hypertension.
• Use with caution in heart failure: monitor for fluid retention.
• Store at room temperature: keep in the original container, protect from moisture and direct sunlight.

Lercanidipine can interact with several drug classes, influencing its efficacy and safety.

Major Interactions (Avoid)

• Strong CYP3A4 inhibitors (e.g., ketoconazole, clarithromycin): may increase plasma levels.
• CYP3A4 inducers (e.g., rifampicin, carbamazepine): may reduce effectiveness.
• Grapefruit juice: can markedly raise drug concentrations.
• Concurrent use with other potent antihypertensives: risk of additive hypotension.
• Nitrates: may cause severe vasodilation.

Moderate Interactions (Monitor Closely)

• Beta‑blockers: may blunt compensatory heart rate response.
• Diuretics: enhance blood pressure‑lowering effect.
• Other calcium channel blockers: potential additive vasodilatory effect.
• NSAIDs: may attenuate antihypertensive response.
• Antidiabetic agents: monitor glucose as blood pressure changes can affect glycemic control.