Hyoscyamus niger, commonly known as Khursani Ajawain, is a plant with a longstanding history in traditional use. It contains various alkaloids such as hyoscyamine, scopolamine, and atropine, which are present in its leaves, seeds, and roots. These compounds have diverse botanical and chemical characteristics. Due to the presence of these alkaloids, products derived from Khursani Ajawain should be used with care and professional guidance is recommended for any applications.