noun which may take the genitive case particle 'no'
Pharmacological term; used as a noun or with の to modify another noun (e.g., 抗ヒスタミン薬).
Antihistamine drugs are often prescribed for hay fever.
These eye drops contain an antihistamine ingredient.
antihistamine
Compound of 抗 (anti-) and ヒスタミン (histamine), a loanword from German Histamin or English histamine.