truth serum

A truth drug (or truth serum) is a drug used for the purposes of obtaining accurate information from an unwilling subject, most often by a police, intelligence, or military organization on a prisoner. It was reported that "truth drugs" have been used by Russian secret services, successors of the KGB.
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Noun
1. an intravenous anesthetic drug that has a hypnotic effect; induces relaxation and weakens inhibitions; is believed to induce people to talk freely
(synonym) truth drug
(hypernym) intravenous anesthetic
(hyponym) amobarbital

1. Any drug (especially a hypnotic or an anesthetic) that can, or is used to, induce or increase talkativeness and/or openness and/or suggestibility. 2. Thiopental sodium, a barbiturate.

Eng: truth serum
Urdu: نَباتِ صَداقَت ۔ سَچ مایہ ۔ ایک دوا جو ایسی کیفیت پَیدا کَرنے کے لیے اِستعمال کی جاتی ہے جِس میں مَعمول ، عامِل کے سَوالات کا آزادانہ جواب دیتا ہے ۔