An 'orphan drug' is:
A. A very cheap drug
B. A drug which has no therapeutic use
C. A drug needed for treatment or prevention of a
rare disease
D. A drug which acts on Orphanin receptors
A. A very cheap drug
B. A drug which has no therapeutic use
C. A drug needed for treatment or prevention of a
rare disease
D. A drug which acts on Orphanin receptors