Efficacy means
A: the concentration at which the drug elicits 50% of its maximal effect
B: the maximal effect produced by the drug
C: the dose at which 50% of subjects exhibit a therapeutic response to a drug
D: the dose at which 50% of subjects dies
E: the dose at which 50% of subjects exhibit a toxic reaction
A: the concentration at which the drug elicits 50% of its maximal effect
B: the maximal effect produced by the drug
C: the dose at which 50% of subjects exhibit a therapeutic response to a drug
D: the dose at which 50% of subjects dies
E: the dose at which 50% of subjects exhibit a toxic reaction
举一反三
- Drug efficacy refers to A: the range of diseases in which the drug is beneficial B: the maximal intensity of response that can be produced by the drug C: the therapeutic dose range of the drug D: the therapeutic index of the drug E: the minimal intensity of response that can be produced by the drug
- The<br/>side effects of the drug are() A: A<br/>reaction caused by an overdose B: A<br/>reaction to long-term medication C: At<br/>treatment dose, the drug produces a response unrelated to the purpose<br/>of treatment D: The<br/>toxicological effect of a drug, which is an unknown reaction E: It<br/>is a heterogenous reaction associated with heredity
- Which of the following belongs to the drug factors affecting drug efficacy? A: Dosage form B: Dose C: Age D: Gender E: Race
- After withdrawal of the drug, the drug concentration is below the threshold, but its pharmacological effects still exists. The phenomenon is called A: idiosyncratic reaction B: toxic reaction C: side reaction D: residual effect E: withdrawal reaction
- Which of the following adverse reactions is an altered physiological state produced by repeated administration of a drug which necessitates the continued presence of the drug to maintain physiological equilibrium? A: Idiosyncratic reaction B: Residual effects C: Drug dependence D: Rebound reaction E: Drug allergic reaction