ED50 is used for determining: (A) Potency, (B) Efficacy, (C) Safety, (D) Toxicity
Answer is A. Ed 50 measures potency Ld 50 measures safety or fatality ed50- dose required to produce 50% of the maximum effect LD50- The dose that causes death in 50 percent of the subjects tested Pgno-54 K D Tripathi Seventh edition