| 3 | An international guideline with six personalised titration schedules for preventing myocarditis and pneumonia associated with clozapine显示文摘White blood cell(WBC)monitoring has reduced clozapinetreated patient deaths associated with agranulocytosis to a rarity.However,clozapine protocols and package inserts worldwide provide no instructions for preventing myocarditis or pneumonia during clozapine titrations.Prescribers worldwide are largely unaware of that.Meanwhile,as they worry about agranulocytosis,their clozapine-treated patients are at risk of dying from pneumonia or myocarditis.Consequently,an international guideline with 104 authors from 50 countries/regions was recently published to provide personalised clozapine titration schedules for adult inpatients.This forum article reviews pneumonia and myocarditis occurring during clozapine titration,as well as the three most innovative aspects of this new guideline:(1)personalised titration,(2)C reactive protein(CRP)measures,and(3)dose predictions based on blood levels.Clozapine metabolism is influenced by 3 levels of complexity:(1)ancestry groups,(2)sex-smoking subgroups,and(3)presence/absence of poor metabolizer status.These 3 groups of variables should determine the maintenance dose and speed of clozapine titration;they are summarised in a table in the full-text.The international clozapine titration guideline recommends measuring CRP levels simultaneously with WBC,at baseline and weekly at least for the first 4 weeks of titration,the highest risk period for clozapine-induced myocarditis. | Jose de Leon Can-Jun Ruan Georgios Schoretsanitis Christopher Rohde Elif Anıl Yağcıoğlu Trino Baptista Oleg O Kirilochev Carlos De las Cuevas Christoph U Correll | 2022 | General Psychiatry2022，35，3： | 0 |
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