Psychoactive drugs produce their effects primarily by acting on brain neurotransmitters.

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Psychoactive drugs alter brain function by acting on neurotransmitters, which are chemical messengers that transmit signals throughout the brain and nervous system. Depending on the drug, they can enhance, inhibit, or alter the release, uptake, or binding of neurotransmitters such as dopamine, serotonin, GABA, and others, which can affect mood, cognition, perception, behavior, and other brain functions.

Psychoactive Drugs Produce Their Effects Primarily by Acting on Brain