Japan started criminalizing the use of cannabis and tetrahydrocannabinol (THC), a psychoactive chemical found in the plant, as revised laws took effect Thursday amid growing concerns over drug abuse ...

Δ9-THC (Δ9-Tetrahydrocannabinol: テトラヒドロカンナビノール）はCBDと同じく大麻草に多く含まれるカンナビノイドの一種です。