Irbesartan Hydrochlorothiazide Winthrop var mere effektivt end placebo (et virkningsløst præparat) og hydrochlorothiazid som enkeltmiddelbehandling med hensyn til at reducere det diastoliske blodtryk.
Irbesartan Hydrochlorothiazide Winthrop was more effective than placebo (a dummy treatment) and than hydrochlorothiazide alone in reducing diastolic blood pressure.