Scopolamine and Truth serum

Scopolamine noun - An alkaloid with anticholinergic effects that is used as a sedative and to treat nausea and to dilate the pupils in ophthalmic procedures.

Truth serum and scopolamine are semantically related In some cases you can replace phrase "Truth serum" with "Scopolamine", this terms are similar.

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.

Scopolamine and truth serum are semantically related in truth drug topic. You can use "Scopolamine" instead a noun phrase "Truth serum".