Displaying 11 results of Paroxetine Stable Isotopes Paroxetine is a selective serotonin reuptake inhibitor (SSRI) used to treat depression, anxiety, and obsessive-compulsive disorders. Stable isotopes of paroxetine are non-radioactive forms of the drug that can be used in pharmacokinetic and pharmacodynamic studies. These isotopes have identical chemical and physical properties to the naturally occurring paroxetine, making them useful in drug development and clinical research. They are also used in metabolic studies, drug-drug interaction studies, and other applications related to drug metabolism and pharmacokinetics.