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  • Title: Trimetazidine for stable angina pectoris.
    Author: Cross HR.
    Journal: Expert Opin Pharmacother; 2001 May; 2(5):857-75. PubMed ID: 11336628.
    Abstract:
    Stable angina pectoris, a symptom of coronary heart disease (CHD), manifests as stress-induced ischaemic episodes resulting in severe chest pain. Therapeutic aims are to improve quality of life by decreasing anginal attacks and to prevent myocardial infarction (MI) and death. Current anginal medications include beta-blockers and calcium antagonists, which decrease ischaemic severity by reducing cardiac workload, and nitrates, which increase coronary blood flow. A new therapeutic approach is the use of metabolic agents, such as trimetazidine, which are cytoprotective during ischaemia. Results of several clinical trials demonstrated that trimetazidine, at the standard dose of 20 mg t.i.d., increased exercise capacity, decreased anginal incidence and decreased left-ventricular (LV) dysfunction compared to placebo. Trimetazidine was also as effective as propranolol (120 - 160 mg/day) and nifedipine (40 mg/day) in decreasing anginal episodes and improving exercise parameters. Trimetazidine improved anginal frequency and symptoms in patients in which treatment with diltiazem, nifedipine, propranolol, pindolol, oxprenolol or long-acting nitrates had failed. Trimetazidine was also more effective than isosorbide dinitrate (30 mg/day) as an adjunct to propranolol. Despite efficacy being equivalent to that of beta-blockers and calcium antagonists, trimetazidine does not depress cardiac function and, correspondingly, is not contraindicated in any condition. Adverse effects of trimetazidine are mild and infrequent. In summary, clinical data indicate that trimetazidine is a safe, effective treatment for the symptoms of stable angina pectoris when used either as a monotherapy or an adjunctive therapy. Longer-term trials are necessary to determine whether trimetazidine will be effective in reducing rates of mortality and MI.
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