Amobarbital and Truth serum

Amobarbital noun - A barbiturate with sedative and hypnotic effects; used to relieve insomnia and as an anticonvulsant.

Truth serum and amobarbital are semantically related. In some cases you can use "Truth serum" instead a noun "Amobarbital".

Truth serum noun - An intravenous anesthetic drug that has a hypnotic effect; induces relaxation and weakens inhibitions; is believed to induce people to talk freely.

Amobarbital and truth serum are semantically related. Sometimes you can replace term "Amobarbital" with "Truth serum", this terms are similar.