antipruritic agent; anti-itch drug
Rare pharmacological term for a medication that relieves itching. The synonym 止痒薬 is more common.
See also: 止痒薬
この止痒剤は湿疹のかゆみに効く。
This antipruritic agent works for the itching of eczema.
Compound of 止痒 (antipruritic) + 剤 (agent, drug). The exact historical derivation is uncertain, but the kanji components are conventionally associated with the meaning.