Ayurvedic Medicine
a) According to method of preparation. 1. Aristha and Asava : Asavas and Aristhas are made by soaking the herbs either in powder form or in the form of decoction (kasaya) in a solution of sugar or jugglery Ex Avayarista, Lauhasava etc. 2. Rasa Rasayan : Ayurvedic medicines containing mineral drugs as main ingredients are called Rasa rasayan or Ras-yoga. They are in pill form or in powder form. Ex Swarnavasma, Roupyavasma, Makaradhwaj, Basantakusumakar ras etc. 3. Lauha Kalpa : Lauha kalpas are preparation of Loha Bhasma as main ingredient with other drugs. The other active ingredients are made to fine powder and mixed with Ex Dhatrilauha, Loha Bhasma. 4. Vati or Gutika :Medicines prepared in the form of tablets or pills are kown as vati or gutika, these are made of one or more drugs of plant, animal or mineral origin. Ex Arogyavardhani vati, Chitrakadi gutika. 5. Churna : Churna is a fine powder form of drugs. Ex ; Trifalachurna, Talishadi churna. 6. Avaleha