Table 5. Proportion of antipsychotic polypharmacy compared with monotherapy (n = 1116).
| Drug | ATC code | Prescriptions N (%) | Monotherapy N (%) | Polypharmacy N (%) |
|---|---|---|---|---|
| Amisulpride | N05AL05 | 47 (3.2%) | 19 (40%) | 28 (60%) |
| Aripiprazole | N05AX12 | 262 (17.6%) | 181 (69%) | 81 (31%) |
| Asenapine | N05AH05 | 88 (5.9%) | 59 (67%) | 29 (33%) |
| Chlorpromazine | N05AA01 | 3 (0.2%) | 1 (33%) | 2 (67%) |
| Clotiapine | N05AH06 | 24 (1.6%) | 5 (21%) | 19 (79%) |
| Clozapine | N05AH02 | 65 (4,4%) | 22(34%) | 43 (66%) |
| Fluphenazine | N05AB02 | 16 (1.1%) | 5 (31%) | 11 (69%) |
| Haloperidol | N05AD01 | 25 (1.7%) | 11 (44%) | 14 (56%) |
| Levomepromazine | N05AA01 | 13 (0.9%) | 10 (77%) | 3 (23%) |
| Levosulpiride | N05AL07 | 1 (0.1%) | 0 | 1 (100%) |
| Olanzapine | N05AH03 | 150 (10.0%) | 102 (68%) | 48 (32%) |
| Paliperidone | N05AX13 | 104 (7%) | 63 (61%) | 41 (39%) |
| Long-acting paliperidone | N05AX13 | 214 (14.4) | 118 (55%) | 96 (45%) |
| Perphenazine | N05AB03 | 1 (0.1%) | 1 (100%) | 0 |
| Pimozide | N05AG02 | 3 (0.2%) | 2 (67%) | 1 (33%) |
| Quetiapine | N05AH04 | 279 (18.8%) | 176 (63%) | 103 (37%) |
| Risperidone | N05AX08 | 110 (7.5%) | 61 (55%) | 49 (45%) |
| Long-acting risperidone | N05AX08 | 5 (0.3%) | 4 (80%) | 1 (20%) |
| Sertindole | N05AE03 | 1 (0.1%) | 0 | 1 (100%) |
| Sulpiride | N05AL01 | 2 (0.1%) | 2 (100%) | 0 |
| Tiapride | N05AL03 | 19 (1.3%) | 15 (79%) | 4 (21%) |
| Ziprasidone | N05AE04 | 14 (0.9%) | 4 (29%) | 10 (71%) |
| Zuclopenthixol | N05AF05 | 1 (0.1%) | 0 | 1 (100%) |
| Zuclopenthixol depot | N05AF05 | 28 (1.9%) | 5 (18%) | 23 (82%) |
| TOTAL | 1475 | 866 (58.7%) | 609 (41%) |