Levamisol is a/an

Levamisol is a/an ?
a) Immunomodulator
b) Immunostimulant
c) Antiheliminthic
d) All of the above
Correct Answer - D
Ans. D. All of the above
Levamisol is an anti-helminthic drug with immune-modulatory action.
At low doses it has immune-stimulatory action.