Antihistamines, which are often used as antiemetics, are classified in R06 - Antihistamines for systemic use. Metoclopramide is classified in A03FA. Combinations with analgesics are classified in N02 - Analgesics. Antivertigo preparations, see N07C.
A04AD - Other antiemetics
The DDD for scopolamine plaster is one plaster (i.e. 1 UD). This DDD is based on prophylaxis of motion sickness. DDDs for other substances classified in this group are based on antiemetic treatment. The DDD for aprepitant is the average daily dose during a three days course.