insecticide; bug repellent
Refers to substances used to kill or repel insects, often in medical, veterinary, or household contexts.
When using insecticide on your pet, please read the directions carefully.
This bug repellent works on cockroaches.
虫除け is a general term for insect repellent, often used for personal protection, while 駆虫剤 is more commonly used in medical or veterinary contexts.
Compound of 駆虫 (kuchū, 'expelling insects') + 剤 (zai, 'agent, medicine').