Pradarantaka lauha

Lauha kalpas are prepared where in Ayas or its derivative are added in Bhasam from to other drugs like Lauha-bhasam, Tamra bhasam, Haritala bhasam, Vanga hasam, Abhra (abhraka) bhasam, Varatika (Kapardika)bhasam, Sunthi , Marica, Pippali, Haritaki, Bibhitaka, Amalaki, Citra (eranda), Vidanga, Saindhava lavana, Samudra lavana, Vida lavana, Sauvarcala lavana, Audbhida lavana, Cavika (cavya), Pippali, Sankha bhasam, Vaca, Havusa (hapusa), Pakala(kustha), Sati, Patha, Devadaru, Ela (suksmaila) and Vrddhadaraka (vrddhadaruka.