ther·a·peu·tic 
(thĕr′ə-pytĭk)
(thĕr′ə-pytĭk)adj. also ther·a·peu·ti·cal (-tĭ-kəl)
1. Having or exhibiting healing powers: a therapeutic agent; therapeutic exercises.
2. Of or relating to the medical treatment of a disease or condition.
n.
A drug or other therapeutic agent.
[New Latin therapeuticus, from Greek therapeutikos, from therapeutēs, one who administers, from therapeuein, to serve, administer treatment, from theraps, therap-, attendant; see THERAPY.]
ther′a·peuti·cal·ly adv.