Which drug is Tincture of Opium?

• A. Morphine
• B. Levorphanol
• C. Tincture of Opium
• D. Secobarbital

Answer: (C)

Tincture of Opium is an opium preparation, not a single purified compound. It’s an alcohol-based extract of opium (often called opium tincture or laudanum) that contains multiple opium alkaloids in variable amounts. Because the question is asking which option corresponds to the actual tincture itself, this name matches the drug being described. The other options represent different drugs: a purified opioid, a synthetic opioid, and a barbiturate, none of which are tincture of opium.