Serotonin reuptake inhibitors


Serotonin reuptake inhibitors (SRIs) are a subcategory of pharmaceutical active pharmaceutical ingredients (APIs) used in the treatment of various mental health conditions. These medications work by specifically targeting the serotonin transporter protein, inhibiting its function and thereby increasing the concentration of serotonin in the synaptic cleft.

SRIs are commonly prescribed for the management of depression, anxiety disorders, obsessive-compulsive disorder (OCD), and other related conditions. By blocking the reuptake of serotonin, SRIs enhance serotonin neurotransmission, which plays a crucial role in regulating mood, emotions, and cognition.

This class of API includes well-known drugs such as fluoxetine, sertraline, paroxetine, and escitalopram, among others. They are typically administered orally and exhibit good bioavailability, allowing for effective systemic distribution.

The therapeutic effects of SRIs are achieved by modulating the delicate balance of serotonin in the brain. By preventing its reuptake, SRIs ensure that serotonin remains available for longer periods, leading to increased activation of postsynaptic serotonin receptors. This neurochemical modulation results in improved mood, reduced anxiety, and alleviation of related symptoms.

Serotonin reuptake inhibitors are generally well-tolerated, but they may have potential side effects such as nausea, gastrointestinal disturbances, sexual dysfunction, and sleep disturbances. However, these effects are often manageable and vary among individuals.

Overall, serotonin reuptake inhibitors are a crucial class of pharmaceutical APIs widely utilized in the treatment of mental health disorders. Their ability to modulate serotonin levels effectively makes them valuable tools in improving patients' quality of life and well-being.

NameCAS numberCategoryAmount of suppliers
Fluoxetine54910-89-3Serotonin reuptake inhibitors23
Fluvoxamine54739-18-3Serotonin reuptake inhibitors19