1功效与剂量表现为正相关功效与剂量成正比关系：在一定范围内同一药物随着剂量的递增，药物效应也相应增加。这种剂量与效应的关系叫量效关系。无论中药、西药大致成此规律。如口服东莨若碱0．65mg可使精神活动减弱；口服2.0mg可引起健忘症；口服45mg则发生幻觉，定向力障碍； 1 Efficacy and dose performance are positively correlated Efficacy and dose are proportional to the relationship: within a certain range of the same drug as the dose increases, the drug effect also increases accordingly. The relationship between dose and effect is called dose-effect relationship. Regardless of traditional Chinese medicine and western medicine, this rule is roughly the same. If oral administration of citrate base 0.65mg can make mental activity weakened; oral administration of 2.0mg can cause amnesia; oral administration of 45mg occurs hallucinations, disorientation;