Australian public assessment report for Olmesartan ...

May cause cardiac arrhythmia such as bradycardia (below than 60 beat/ minute), ventricular fibrillation (which may lead to cardiac arrest and death), and Bigeminal rhythm. Nausea, vomiting, and diarrhea. Headache, malaise and muscle weakness. Skin rashes, blurring of vision, diplopia and white halos. ................
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