RecruitingDrug trialThe Efficacy and Safety of Short Term S-ketamine Infusion as an Adjunctive Therapy in Patients With FibromyalgiaFibromyalgia is a chronic pain syndrome where current medications have limited efficacy and a slow onset of action. Esketamine shows potential as a rapid-acting analgesic, but previous low-dose studies failed to demonstrate long-term benefits. The efficacy of higher-dose ESK as an adjunctive therapy when standard treatments are insufficient remains unclear.