One way in which drugs can prolong the effects of a neurotransmitter is through blocking the reuptake of the neurotransmitter by the sending neuron.

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When a drug blocks the reuptake of a neurotransmitter, it prevents the sending neuron from taking back the neurotransmitter molecules that have been released into the synapse. This leads to a buildup of the neurotransmitter, prolonging its effects and enhancing its activity in the brain. This is one mechanism by which certain drugs, such as antidepressants, can affect mood and behavior.

One Way in Which Drugs Can Prolong the Effects of a Neurotransmitter