Kasakasa Legiyam is a traditional Siddha herbal tonic prepared from poppy seeds (Papaver somniferum), known in Tamil as kasakasa. It is primarily valued for its calming, cooling, and sedative properties, making it an effective natural remedy for insomnia and disturbed sleep. The poppy seeds used in the preparation contain trace alkaloids that help relax the nervous system and reduce anxiety. This legiyam is also traditionally used to soothe burning sensations in the body, reduce internal heat (udal sooram), and alleviate restlessness, especially during hot seasons. In Siddha practice, it is believed to balance Pitham and Vatham, making it useful for treating nervous exhaustion, dryness, and cramps. Kasakasa Legiyam is also beneficial in relieving body pain, joint stiffness, and mild headaches caused by stress or lack of rest.While generally safe in recommended doses, it should be used cautiously and not overused, especially in children or during pregnancy. As with all Siddha formulations, it is best consumed under the advice of a qualified practitioner to avoid any misuse or unwanted effects.