Antinociceptive effect of ranolazine and trimetazidine.

Background:Ranolazine and trimetazidine are piperazine derivatives used in antianginal therapy. There are data on the use of these drugs in the treatment of neuropathic pain. In this study, it was aimed to evaluate the antinociceptive effects of ranolazine and trimetazidine.Methods: Sixty patients who were started on trimetazidine or ranolazine treatment were included in the study. The patients were evaluated with Seattle Angina Questionnaire (SAQ), Visual Analog Scale (VAS) and State-Trait Anxiety Inventory (STAI) on the first day of treatment and at the first month follow-up.Results: The SAQ scores of the patients given ranolazine were statistically significantly higher than the patients given trimetazidine. The most significant increase was observed in terms of treatment satisfaction (53.03 ± 8.11 vs. 72.88 ± 5.29, p < 0.001) and quality of life (49.79 ± 8.62 vs. 68.01 ± 0.65, p = 0.016). The decrease in VAS (p = 0.001) and the decrease in STAI scores (p = 0.002) after treatment in the ranolazine group were significantly higher than in the trimetazidine group.Conclusions: Ranolazine and trimetazidine are two effective drugs in antianginal treatment. While both drugs are effective on general systemic musculoskeletal pain and anxiety, the efficacy of ranolazine is more pronounced.