A. Soursop is beneficial in cancer treatment, but there is no definite proof that it is better than chemotherapy. The Food and Drug Administration (FDA) does not approve soursop or agree with any claims that you may use it to cure diseases like cancer. There have also been reports of cytotoxic drug-related side effects such as hair loss and immune system impairment. In addition, medical professionals found the most prevalent acetogenin to be neurotoxic in laboratory studies. According to researchers, the potentially hazardous effects of soursop vary depending on the section of the plant, the extraction process, the plant's location, and the harvest time.