Recent Examples on the WebSide effects of the tucatinib treatment that emerged in the study included the risks of diarrhea and elevated levels of an enzyme in the body called aminotransferase. Jacqueline Howard, CNN, 17 Apr. 2020 Side effects of the tucatinib treatment that emerged in the study included the risks of diarrhea and elevated levels of an enzyme in the body called aminotransferase. Jacqueline Howard, CNN, 17 Apr. 2020 Side effects of the tucatinib treatment that emerged in the study included the risks of diarrhea and elevated levels of an enzyme in the body called aminotransferase. Jacqueline Howard, CNN, 17 Apr. 2020 Side effects of the tucatinib treatment that emerged in the study included the risks of diarrhea and elevated levels of an enzyme in the body called aminotransferase. Jacqueline Howard, CNN, 17 Apr. 2020 At the top of the list: a slightly elevated level of the liver enzyme alanine aminotransferase, or ALT. Melissa Healystaff Writer, Los Angeles Times, 7 Apr. 2020 Side effects of the tucatinib treatment that emerged in the study included the risks of diarrhea and elevated levels of an enzyme in the body called aminotransferase. Jacqueline Howard, CNN, 17 Dec. 2019 See More