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Table 2. Details of the atypical antipsychotics prescribed: their frequencies; median dose; the frequencies of patients prescribed antipsychotic polypharmacy (with and without low-potent antipsychotics) and anticholinergics; the frequencies of no co-prescription of antipsychotics and anticholinergics (n = 2,725)

From: Simultaneous prescribing of atypical antipsychotics, conventional antipsychotics and anticholinergics—a European study

Atypical antipsychotic Number of patients (%) Median dose (mg) Antipsychotic polypharmacy (%) (including low-potent antipsychotics) Antipsychotic polypharmacy (%) (excluding low-potent antipsychotics)* Anticholinergic prescription (%) No co-prescription of antipsychotics or anticholinergics (%)
Risperidone 1095 (40.2%) 4.0 45.1 24.7 36.5 42.0
Clozapine 683 (25.1%) 400.0 31.2 18.9 24.5 57.7
Olanzapine 562 (20.6%) 15.0 37.0 22.1 20.3 56.2
Sulpiride 133 (4.9%) 300.0 49.2 25.8 31.1 41.7
Amisulpride 132 (4.8%) 600.0 54.1 23.3 45.9 28.6
Sertindole 37 (1.4%) 16.0 62.2 24.3 27.0 29.7
Quetiapine 16 (0.6%) 550.0 50.0 12.5 12.5 43.8
Zotepine 2 (0.1%) 225.0 0 0 0 100
Two atypicals 65 (2.4%) ** *** *** 40.0 ****
Total 2725 (100%) 42.1% 24.4% 30.1% 47.1%
  1. * See Table 3 for the classification of the low-potent antipsychotics
  2. ** Total median dose not calculated
  3. *** By definition 100%
  4. **** By definition 0%