The Annals of pharmacotherapy · 1999
Atypical antipsychotics: Part II: Adverse effects, drug interactions, and costs.
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Brown C S, Markowitz J S, Moore T R, Parker N G
Аннотация
OBJECTIVE: To compare the adverse effects, drug interactions, and costs of conventional and atypical agents, and to provide a summary of therapeutic guidelines. Part I compared the pharmacology, pharmacokinetics, and efficacy of atypical and conventional agents.
DATA SOURCES: Information was retrieved from a MEDLINE English-language literature search from June 1986 to June 1998 and by review of references. Indexing terms included atypical antipsychotics, neuroleptics, clozapine, risperidone, olanzapine, sertindole, quetiapine, and ziprasidone.
STUDY SELECTION: Comparative studies were selected when possible; placebo-controlled studies were included when data were limited on newer atypical antipsychotics.
DATA EXTRACTION: Emphasis was placed on properly designed clinical trials that assessed dosage, expanded efficacy, enhanced adverse effect profile, and cost.
DATA SYNTHESIS: Significant adverse effects are agranulocytosis with clozapine, dose-dependent extrapyramidal side effects (EPS) with risperidone, and neuroleptic malignant syndrome with clozapine and risperidone. Clinically relevant drug interactions may occur with clozapine-lorazepam, clozapine-fluvoxamine, and sertindole-quinidine. Newer atypical agents have high acquisition costs but may reduce noncompliance and rehospitalization rates.
CONCLUSIONS: Risperidone or olanzapine are recommended as first-line agents for schizophrenia due to accumulating controlled trials and clinical experience. Quetiapine should be considered with partial response or if EPS develop, and clozapine is an option with treatment-refractory patients. Atypical agents may contribute to a better quality of life, but conventional neuroleptics are the first choice for strictly cost considerations.
DATA SOURCES: Information was retrieved from a MEDLINE English-language literature search from June 1986 to June 1998 and by review of references. Indexing terms included atypical antipsychotics, neuroleptics, clozapine, risperidone, olanzapine, sertindole, quetiapine, and ziprasidone.
STUDY SELECTION: Comparative studies were selected when possible; placebo-controlled studies were included when data were limited on newer atypical antipsychotics.
DATA EXTRACTION: Emphasis was placed on properly designed clinical trials that assessed dosage, expanded efficacy, enhanced adverse effect profile, and cost.
DATA SYNTHESIS: Significant adverse effects are agranulocytosis with clozapine, dose-dependent extrapyramidal side effects (EPS) with risperidone, and neuroleptic malignant syndrome with clozapine and risperidone. Clinically relevant drug interactions may occur with clozapine-lorazepam, clozapine-fluvoxamine, and sertindole-quinidine. Newer atypical agents have high acquisition costs but may reduce noncompliance and rehospitalization rates.
CONCLUSIONS: Risperidone or olanzapine are recommended as first-line agents for schizophrenia due to accumulating controlled trials and clinical experience. Quetiapine should be considered with partial response or if EPS develop, and clozapine is an option with treatment-refractory patients. Atypical agents may contribute to a better quality of life, but conventional neuroleptics are the first choice for strictly cost considerations.