Ratio of median lethal dose to median effective dose is called?
Therapeutic Index (T.I.): T.I. = LD50 /ED50 It is a measure of the safety of a drug. It is calculated as a ratio of LD50 to ED50. Drugs having high T.I. are safer whereas those having low T.I. are more likely to be toxic.
Pharmacodynamics
Drug potency
Therapeutic index
Potentiation
Therapeutic efficacy
Therapeutic index