Hello Thanks for writing in HCM I had gone through your query and understood your concerns. Both Sazo and saaz are same Its side effects are Headache, anorexia, nausea, vomiting, diarrhoea, abdominal discomfort, photosensitivity, hair loss. Potentially Fatal: Severe hypersensitivity reactions, blood dyscrasias, renal and hepatic toxicity, fibrosing alveolitis Hope this guides you. If you have additional questions or follow up queries then please do not hesitate in writing to us. I will be happy to answer your queries. If you do not have any clarifications, you can please close the discussion. Thank you. Wishing you good health