Essential medicines are those that satisfy the priority health care needs of the majority of population. A limited range of carefully selected essential medicines leads to better health care, better drug management and lower costs. They should be Available at all times In adequate amounts In appropriate dosage forms with assured quality and Adequate information and At a price the individual and community can afford . The first national list of EM in India was prepare in the year 1996, subsequently revised in the year 2003,2011and 2015 ( 376 medicine). EM Concept 1st given by WHO in 1975 and EM list in 1977. The decision about which medicine are essential remains a national responsibility. The medicine should be licensed in India. The medicine should be useful in disease which is a public health problem in India. The medicine should be cost effective. e.g.: Iron dextran, Iron sucrose , ferric carboxymaltose It should have proven efficacy and safety profile. 5.The medicine should be aligned with the current treatment guideline for the diseases. 6. It should be stable under the storage condition in India 7. Cost of total treatment & not the unit price of a medicine must be considered. 8. When several comparable drugs are available for same therapeutic indication drug which provides most favourable benefit / risk ratio is to be selected.FDC ( Fixed dose Combination ) are generally not included unless the combination has unequivocally proven advantage over individual ingredients e.g - Antitubercular & antimalarial drugs. 10. The list of EM is based according to the level of health care Primary (P) Secondary (S) Tertiary (T)