Potency
The amount of drug needed to produce a defined effect. Expressed as EC50 or ED50 — lower values indicate higher potency. Potency is clinically less important than efficacy and safety.
示例
- Fentanyl more potent than morphine
- Hydrochlorothiazide vs chlorthalidone
- Potency affects dose, not max effect
您知道吗？
The amount of drug needed to produce a defined effect. Expressed as EC50 or ED50 — lower values indicate higher potency. Potency is clinically less important than efficacy and safety.