Final answer:
The molecule codeine is an opioid derived from morphine and used as a painkiller and local anesthetic. Unlike other substances, neither codeine nor morphine leads to hallucinations, and they're known primarily for pain relief. Cannabinoids such as THC provide sedative and pain relief effects and interact with specific brain receptors.
Step-by-step explanation:
The molecule mentioned in the question is codeine, which is an opioid used as a less potent painkiller and local anesthetic compared to morphine. Both morphine and codeine are derived from opium, obtained from the opium poppy plant. Morphine contains two hydroxyl functional groups and is a strong narcotic used to relieve pain. When one of the hydroxyl groups of morphine is modified into a methyl ether group, it forms codeine.
However, it is worth mentioning that neither morphine nor codeine are commonly associated with hallucinations; they are primarily known for their analgesic (pain relief) and cough suppressant properties. Cannabinoids, on the other hand, include compounds like THC (tetrahydrocannabinol), which is found in marijuana and can produce a sedative effect as well as pain relief when ingested or injected. Opioids and cannabinoids bind to specific receptors in the brain and other parts of the body to exert their effects.