Choornam is an herbal powder. Grounding of the herbs provide to storage of the medicine for longer periods without using any preservatives.
Ayurvedic choorna sometimes are used as such – like the one in nasya (nasal administration) therapy or dantha dhawana choornam or the Ayurvedic powder used for cleaning teeth.
Sometimes the choornas are taken in with milk, ghee, or mixed in warm water.