As nouns the difference between nonsedative and levocetirizine
is that nonsedative is a drug that is not a sedative while levocetirizine is a third-generation nonsedative antihistamine.
As an adjective nonsedative
is not sedative.
nonsedative
English
Adjective
(-)
Not sedative.
Noun
(
en noun)
A drug that is not a sedative.