International Science Community Association Research Journal of Pharmacutical Sciences 2319 - 555X 2 8 2013 September 30 Methods of processing of Lac (Laccifer lacca Kerr) described in Unani system of Medicine 5 7 EN Zaman Roohi 1 Dept. of Ilmul Saidla National Institute of Unani Medicine, Bangalore, Karnataka, INDIA SadiyaNoorul Basar 2 Aisha Perveen 1 Ilmul Advia (Pharmacology), National Institute of Unani Medicine (NIUM, Bangalore-91, Karnataka, INDIA Nasreen Jahan 2 Dept. of Preventive and Social Medicine, Allama Iqbal Unani Medical College (AIUMC), Muzaffarnagar, UP, INDIA Wadud Abdul 3 TanwirAlam M. 4 > Mini Review Paper 2013 9 6 2013 September 30 Unani and Arab (700-1200 AD) physicians wrote about the medicinal properties of Lac in their books. Basically Lac is Indian origin drug, so they were confused earlier about the exact source and wrongly described it as plant origin drug, but were well versed with its medicinal properties and uses. All the great Unani physicians like Zakaria Razi, Majoosi, Ibn Sina, Rabban Tabri, Ibn Rushd, Ibn Bitar, Ibrahim Al Maghrabi, Hakeem Abdul Hakeem, Najmul Ghani, Jurjani and Kabeeruddin indicate extensively the medicinal use of Lac for various diseases in their respective books and treatises. Abu Hanifa also recommends its use as a medicine. 71 various methods are described for the processing of crude drugs in unani literature. Crude lac which is purchased from market or collected from any other source contains contamination like dirt, dust, insect’s remains, bird droppings, tree parts, branches, twinges and leaves etc. Before use these impurities have to be removed. Processing is done either to remove the impurities and toxicity or/and to prepare the drug in such a way so that the desired effect of the drug can be attained. Specific methods are mentioned in unani literature for the processing of crude lac is being discussed in this article. Copyright@ International Science Community Association