Proponents claim that soursop leaf tea treats conditions such as anemia, insomnia, gout, diabetes and acne as well as arthritis, hypertension, eczema, and gallbladder and liver disorders. Some believe it is a useful cancer treatment, but no human studies substantiate its efficacy or safety.
Soursop leaf tea may boost the immune system and help prevent bodily infections. Soursop leaves and fruit may have antibacterial properties and are rich in fiber, iron, potassium, calcium and vitamins A, B and C. They are also a source of gentisic acid, annonacin, annocatalin and anonol.
Studies indicate, however, that oral ingestion of soursop causes neurological disorders, such as Parkinson's disease. Ingesting soursop tea while undergoing chemotherapy may negatively impact the efficacy of the chemotherapy constituents.