noun
anthelmintic; deworming medicine; vermifuge
Medical term for a drug that expels or destroys parasitic worms. Used in veterinary and human contexts.
犬に駆虫薬を与える時期を獣医に相談した。
I consulted the vet about when to give the dog deworming medicine.
noun
Less common usage; more specific terms like 虫除け (むしよけ) are typical for repellents. This sense may appear in older or technical contexts.
昔はこのハーブを駆虫薬として使っていたらしい。
Apparently, this herb was used as an insect repellent in the past.
Standard word for insect repellent (spray, lotion, etc.). 駆虫薬 in this sense is rare and may sound outdated.
Compound of 駆虫 (くちゅう, 'expelling insects/worms') + 薬 (やく, 'medicine'). The term is transparently derived from its components.