A third of patients treated for schizophrenia who stop taking their medication early do so because they do not feel any significant improvement or because their symptoms are worsening. A study published today in the open access journal BMC Medicine reveals that patients with schizophrenia are three times more likely to stop treatment because of poor response or worsening symptoms, than because of adverse non-psychiatric side effects.
Hong Liu-Seifert and colleagues from Eli Lilly and Company in Indianapolis, USA, analysed the reasons for stopping treatment of patients who took part in four previous Eli Lilly studies. The studies included a total of 1627 patients and compared the effects of taking olanzapine, risperidone, quetiapine or ziprasidone in patients diagnosed with schizophrenia or related disorders.
Liu-Seifert et al.s analysis shows that 53% (866/1627) of patients stopped treatment early. Of the 866 patients who stopped treatment, 36% (315/866) did so because the treatment was felt not to be effective or because their symptoms worsened. Only 12% of patients who stopped treatment early did so because of adverse events such as dizziness, fatigue, vomiting or weight gain.
Juliette Savin | alfa
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