The Toxicity of a Given Drug is Expressed as The

Question

The toxicity of a given drug is expressed as the
A)selective toxicity.
B)biocide index.
C)biostatic index.
D)therapeutic index.

Accepted Answer

The therapeutic index (TI) is a measure of the safety of a drug and is defined as the ratio of the dose that produces toxicity to the dose that produces a therapeutic response. A high TI indicates that the drug is relatively safe, while a low TI indicates that there is a high risk of toxicity at therapeutic doses. Therefore, the toxicity of a given drug is expressed as a therapeutic index.