Phyllanthus niruri leaves and extracts are available in teas and supplement tablets. Before using Phyllanthus niruri, discuss it with a doctor or another healthcare provider. Supplements can cause adverse effects and interfere with ongoing treatments. The Food and Drug Administration (FDA) do not regulate Phyllanthus niruri or other supplements. The contents and quality of these products can vary. Before purchasing supplements, read reviews carefully and check labels for any additional ingredients.