학술논문
Diazepam i.m. – nejčastěji užívaný, ale nevhodný lék ke zvládání akutní úzkosti, agitovanosti a agresivityDiazepam i. m. – nejčastěji užívaný, ale nevhodný lék ke zvládání akutní úzkosti, agitovanosti a agresivityDiazepam i. m. – the Most Common, but Inappropriate Medication for Management of Acute Anxiety, Agitation and Aggression
Document Type
TEXT
Author
Source
Subject
Language
Czech
Multiple Languages
Multiple Languages
Abstract
Úvod: Při neklidu, úzkosti a agitovanosti je někdy nutné přikročit k intramuskulární (i. m.) aplikaci benzodiazepinů. V ČR je často používán diazepam. Cílem práce je zjistit interindividuální variabilitu koncentrací diazepamu v séru po i. m. aplikaci a hodnotit klinický efekt léku. Metodika: Do hodnocení jsme zařadili šest mužů, kterým bylo při ambulantní léčbě aplikováno 10 mg diazepamu i. m. Měření farmakokinetických parametrů a anxiety byla prováděna po 30 min (T1), dále po 4 (T2) a 24 hod (T3). Diagnóza byla stanovena pomocí Mini-International Neuropsychiatric Interview, anxietu jsme kvantifikovali Hamiltonovou škálou úzkosti (HAMA). Výsledky: V čase T1 (po 30 min) byly průměrné (geometrický průměr) hladiny diazepamu v séru 14,6 ng/ml, za 4 hod 48,6 ng/ml a za 24 hod 28,7 ng/ml. Hodnoty v čase T1 se pohybovaly v rozmezí 0,5–148,0 ng/ml. Nenalezli jsme vztah mezi skórem HAMA a koncentracemi diazepamu. U všech pacientů došlo k poklesu úzkosti v čase T1 na normální hodnoty (HAMA < 13). Při dalším sledování už nebyly hodnoty HAMA zvýšené. Závěr: Koncentrace diazepamu byly v průměru u pacientů 30 min po aplikaci výrazně nižší než po 4 i 24 hodinách. Největší variabilitu koncentrací jsme pozorovali za 30 min, kdy byl rozdíl mezi nemocnými 280násobný. Tato zjištění potvrzují zahraniční zkušenosti, podle kterých diazepam v i. m. formě nemá být užíván k ovlivnění akutních stavů. Diskutujeme o rozdílech mezi SPC jednotlivých přípravků a oficiálních doporučujících pokynů, které nutí k nevhodné aplikaci diazepamu i. m. a zároveň neumožňují jiné než off-label užití v guidelines doporučovaného midazolamu.
Introduction: There is a need for intramuscular (IM) administration of benzodiazepines for acute restlessness, anxiety and agitation. In the Czech Republic, diazepam is frequently used. The aim of this study was to determine the variability of serum diazepam concentrations after IM administration and evaluate its clinical effect. Methods: We included six men, who were administered 10 mg of diazepam IM in an outpatient setting. Measurements were carried out 30 minutes (T1), 4 (T2) and 24 hours (T3) after diazepam administration. The diagnosis was determined using the Mini-International Neuropsychiatric Interview, anxiety was quantified by the Hamilton Anxiety Rating Scale (HAMA). Results: The mean levels of diazepam in the serum were 14.6 ng/ml at T1 (after 30 minutes), 48.6 ng/ml at 4 hours and 28.7 ng/ml at 24 hours after administration. The values at T1 ranged from 0.5 ng/ml to 148.0 ng/ml. We found no relationship between the scores of HAMA and concentrations of diazepam. Anxiety decreased to normal values (HAMA < 13) at the time T1 in all patients. Conclusions: Concentrations of diazepam were lower 30 minutes after the administration than after 4 and 24 hours, respectively. We observed the largest variability in concentrations 30 minutes after the administration, when the concentrations between patients differed 280-times. This finding confirms international experience that IM diazepam administration should not be used. We discuss the differences between individual SPCs and guidelines that force inappropriate use of diazepam IM and do not permit other than off-label use of midazolam. Key words: diazepam – pharmacokinetics – agitation – aggression – intramuscular administration The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers.
J. Vevera, Z. Oktábec, F. Perlík, V. Marešová, A. Kopecká, J. Raboch, M. Novotná
Introduction: There is a need for intramuscular (IM) administration of benzodiazepines for acute restlessness, anxiety and agitation. In the Czech Republic, diazepam is frequently used. The aim of this study was to determine the variability of serum diazepam concentrations after IM administration and evaluate its clinical effect. Methods: We included six men, who were administered 10 mg of diazepam IM in an outpatient setting. Measurements were carried out 30 minutes (T1), 4 (T2) and 24 hours (T3) after diazepam administration. The diagnosis was determined using the Mini-International Neuropsychiatric Interview, anxiety was quantified by the Hamilton Anxiety Rating Scale (HAMA). Results: The mean levels of diazepam in the serum were 14.6 ng/ml at T1 (after 30 minutes), 48.6 ng/ml at 4 hours and 28.7 ng/ml at 24 hours after administration. The values at T1 ranged from 0.5 ng/ml to 148.0 ng/ml. We found no relationship between the scores of HAMA and concentrations of diazepam. Anxiety decreased to normal values (HAMA < 13) at the time T1 in all patients. Conclusions: Concentrations of diazepam were lower 30 minutes after the administration than after 4 and 24 hours, respectively. We observed the largest variability in concentrations 30 minutes after the administration, when the concentrations between patients differed 280-times. This finding confirms international experience that IM diazepam administration should not be used. We discuss the differences between individual SPCs and guidelines that force inappropriate use of diazepam IM and do not permit other than off-label use of midazolam. Key words: diazepam – pharmacokinetics – agitation – aggression – intramuscular administration The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE “uniform requirements” for biomedical papers.
J. Vevera, Z. Oktábec, F. Perlík, V. Marešová, A. Kopecká, J. Raboch, M. Novotná