What is the general purpose of Selective Serotonin Reuptake Inhibitors (SSRIs)?

Selective Serotonin Reuptake Inhibitors (SSRIs) are primarily designed to increase serotonin levels in the brain. They achieve this by inhibiting the reuptake of serotonin at the synapses, allowing more of this neurotransmitter to remain available in the synaptic cleft for receptor binding. By enhancing serotonin availability, SSRIs effectively help in treating mood disorders such as depression and anxiety by improving mood and emotional regulation.

The mechanism of action specifically increases serotonin, differentiating it from other neurotransmitters like dopamine or norepinephrine, which are not directly affected by SSRIs. This focused increase in serotonin is what makes SSRIs particularly suited for conditions associated with low serotonin activity.