效价强度是指产生一定效应所需要的药物剂量大小,剂量愈小表示效价强度愈大。相同剂量下A药比B药强,但两者能达到的最大效应(即效能)可能相似。例如,强的松的抗炎作用比氢化可的松强4倍,故前者5mg的剂量与后者20mg是等效量。显然,效价强度对决定药物的剂量是重要的。 效能又称内在活性,是指该药物最大效应的水平高低。A药能产生某种治疗作 Strength of potency refers to the amount of drug required to produce a certain effect, and the smaller the dose, the greater the potency of the titer. A drug at the same dose stronger than the B drug, but the two can achieve the maximum effect (ie efficacy) may be similar. For example, prednisone has an anti-inflammatory effect 4 times stronger than hydrocortisone, so the former 5mg dose and the latter 20mg is the equivalent amount. Obviously, potency is important for determining the dose of a drug. Effectiveness, also known as intrinsic activity, refers to the level of the maximum effect of the drug. A medicine can produce some kind of treatment