We obtained pharmaco-epidemiologic data regarding the antipsychotic maintenance treatment (AMT) of schizophrenia patients through a postal survey sent to all Austrian psychiatrists and neurologists. Drug therapy was considered the most important therapeutic approach in the long-term management of schizophrenia. However, the majority of the respondents clearly were not satisfied with the current status of scientific knowledge about dosage and duration of AMT. Single-drug treatment with antipsychotics was preferred by the respondents; oral and depot neuroleptics were used with equal frequency. Haloperidol was the oral drug most frequently mentioned as first choice (44% of the respondents), followed by clozapine (14.1%) and thioridazine (9.2%). The proposed mean daily doses showed striking variations among respondents. The proposed mean length of maintenance treatment in first-episode patients was 7.3 months; in multi-episode patients, it was 20.1 months. The results show considerable variation in physicians' attitudes toward AMT.
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Meise et al. (1994) studied this question.