Which trade name is known for a narcotic?

The trade name known for a narcotic is Paregoric. This medication is an opiate used primarily to treat diarrhea and to relieve certain types of pain. It contains camphorated tincture of opium, which is derived from the opium poppy, making it a narcotic substance. Paregoric's ability to act on the central nervous system qualifies it as a narcotic analgesic.

While other options have distinct medical uses, they do not fall into the category of narcotics in the same way. Quaalude, for instance, is a barbiturate that was once prescribed for insomnia and anxiety, but it is not primarily categorized as a narcotic. Azene, known generically as thiopental, is a barbiturate used for anesthesia. Valium (diazepam) is a benzodiazepine used for anxiety, muscle spasms, and seizures, but it also is not classified as a narcotic. Therefore, Paregoric stands out as the correct identification of a narcotic in this context.