Thioxanthene derivatives are primarily used in the pharmaceutical industry, especially as antipsychotic agents. These compounds are known for their ability to modulate dopamine receptors in the brain, making them effective in treating schizophrenia and other psychotic disorders. Some derivatives exhibit sedative and antiemetic properties, which extend their use to managing severe nausea and vomiting in clinical settings. Additionally, certain thioxanthene compounds are investigated for their potential in photodynamic therapy and organic electronics due to their light-absorbing characteristics and ability to form stable radical ions. Their structural flexibility also makes them useful intermediates in synthetic organic chemistry for developing new bioactive molecules.