Ringer equivalence number
ID: ringer-equivalence-number
The Ringer equivalence number (REN) is a concept used in the field of pharmacology and toxicology to describe a quantitative measure related to the efficacy of a drug or therapeutic agent in producing a certain biological effect. The REN is often related to drug dosage and its relationship with the response of a biological system, helping to determine how effectively a substance can produce a desired outcome compared to other compounds.
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