sentences:  Individuals suffering from Brugada syndrome will be more susceptible to the arrhythmogenic effects of the drug, and this can be observed on an electrocardiogram as an ST elevation.The compound was first isolated by Salimuzzaman Siddiqui in 1931  from the roots of "Rauvolfia serpentina".He named it "ajmaline", after Hakim Ajmal Khan, one of the most illustrious practitioners of Unani medicine in South Asia.