Drug potency is the
amount of drug required to produce a given percentage of its maximal effect,
irrespective of the size of maximal effect. A drug can have high potency but
poor efficacy, meaning that response is seen at very low doses and remains
small even at high doses. Drug potency is seldom an important clinical
consideration. In the field of pharmacology, potency
is a measure of drug
activity expressed in terms of the amount required to produce an effect of
given intensity. A highly potent drug evokes a given response at low
concentrations, while a drug of lower potency evokes the same response only at
higher concentrations. The potency depends on both the affinity and efficacy.
Pharmacovigilance and
Pharmacoepidemiology is a scholarly journal maintaining high standards of
Pharmacoepidemiology Researches. This Journal runs with scientific excellence
and propagates the peer review process very quickly.
