<unk>  refers to the response(s) after a treatment of any kind, the results of which are judged to be useful or favorable. This is true whether the result was expected, unexpected, or even an unintended consequence. An adverse<unk>  (including nocebo) is the converse and refers to harmful or undesired response(s). What constitutes a<unk>  versus a side<unk>  is a matter of both the nature of the situation and the goals of treatment. No inherent difference separates<unk>  and undesired side<unk> s; both responses are behavioral/physiologic changes that occur as a response to the treatment strategy or agent.
Therapeutic effect
Tissue selectivity
Specific dynamic action
Orgastic potency
Acute to chronic ratio
Late effect
Limited symptom attack
Side Effect