Lacidipine. A review of its pharmacodynamic and pharmacokinetic properties and therapeutic potential in the treatment of hypertension.

PMID 7527328


Lacidipine is an orally administered calcium channel blocker of the dihydropyridine class, which shows selectivity for vascular smooth muscle over cardiac tissue and has a long duration of action. In studies using ambulatory blood pressure monitoring, lacidipine 2 to 8mg administered once daily in the morning reduced blood pressure over 24 hours, with the reductions being greater during the day than at night in some studies. 77 to 87% of patients with mild to moderate hypertension had their blood pressure controlled by treatment with lacidipine 2 to 8 mg/day for 1 to 4 months in dose-finding studies. When administered once daily, lacidipine 4 to 6 mg was equivalent in antihypertensive efficacy to hydrochlorothiazide 25 to 50 mg/day, atenolol 50 to 100 mg/day, and the prototype calcium channel blocker nifedipine 20 to 40 mg twice daily (sustained-release formulation). The adverse effects of lacidipine are those common to other dihydropyridine calcium channel blockers, and include headache, flushing, ankle oedema, dizziness and palpitations. The long term effects of lacidipine on cardiovascular morbidity and mortality, and possible additional clinical benefits in terms of its antiatherosclerotic effects, are under investigation; the outcome of these studies will be important in defining the future role of this agent in the treatment of hypertension. Thus, available evidence suggests lacidipine provides a further alternative to the dihydropyridine calcium channel blockers currently available for the treatment of essential hypertension.

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SML0946 Lacidipine, ≥98% (HPLC)