De mest almindelige bivirkninger ved Irbesartan Hydrochlorothiazide Winthrop (set hos 1 og 10 patienter ud af 100) er svimmelhed, kvalme eller opkastninger, uregelmæssig vandladning, træthed, stigninger i urinkvælstof (BUN, et spaltningsprodukt af protein), forhøjede kreatininniveauer (et spaltningsprodukt af musklerne) og kreatininkinase (et enzym i musklerne).
The most common side effects with Irbesartan Hydrochlorothiazide Winthrop (seen in between 1 and 10 patients in 100) are dizziness, nausea (feeling sick) or vomiting, abnormal urination, fatigue (tiredness), and increases in blood urea nitrogen( BUN, a breakdown product of protein), creatinine (a breakdown product of muscle) and creatine kinase (an enzyme found in muscles).