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Use in Patients with Heart Failure: In a long-term placebo-controlled study (PRAISE - 2) of amlodipine in patients with New York Heart Association (NYHA) class III and IV heart failure of non-ischemic etiology, amlodipine was associated with increased reports of pulmonary edema despite no significant differences in the incidence of worsening heart failure compared to placebo (see Pharmacology: Pharmacodynamics under Actions).
Use in Patients with Impaired Hepatic Function: As with all calcium antagonists, amlodipine's half-life is prolonged in patients with impaired liver function and dosage recommendations have not been established in these patients. The drug should therefore be administered with caution in these patients.
Effects on Ability to Drive and Use Machines: Clinical experience with amlodipine indicates that it is unlikely to impair a patient's ability to drive or use machinery.
