Meclizine Dihydrochloride (CAS No. 1104-22-9) in bulk powder form
The subject product, Meclizine Dihydrochloride is an antihistamine and is also considered to be an antiemetic.
It is used in the treatment of motion sickness ranging from nausea and vomiting, to dizziness and vertigo.
Meclizine is also known as Meclozine (INN).
Subheading HS: 2933.59.
Source: https://rulings.cbp.gov/index.asp, July 6, 2017 (N287039)