A patient with urolithiasis has unbearable spasmodic pain. To prevent pain shock, he has been given an injection of atropine along with a narcotic analgesic having antispasmodic effect. What drug was it?

Answer options

1. Morphine hydrochloride
2. Ethylmorphine hydrochloride
3. Tramadol
4. Nalorphine
5. Promedol

Explanation

Promedol is a drug that has a narcotic analgesic effect, an antispasmodic effect, and can be administered together with atropine.