Morphine and heroin reduce activity in the nervous system, produce lethargy, and cause a pronounced slowing of almost all bodily functions. These drugs are frequently referred to as

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Morphine and heroin are both classified as narcotics, which are drugs that produce sedative effects and can lead to dependence and addiction. Designer drugs typically refer to synthetic drugs designed to mimic the effects of other drugs, whereas stimulants and hallucinogens produce opposite effects on the nervous system compared to narcotics.

Morphine and Heroin Reduce Activity in the Nervous System, Produce