Match Each Term with Its Definition

Match each term with its definition.
-Drug that is the only available,approved treatment for a given indication

A) chemotherapeutic
B) pharmacodynamic
C) agonist
D) antagonist
E) synergistic
F) orphan drug
G) prescription drug
H) controlled substance
I) Pyxis
J) over-the-counter (OTC) drug
K) Pillbox