Tokyo, July 10, 2006 (JCN) - Pfizer Japan introduced J ZOLOFT Tablets 25mg/50mg, its proprietary antidepressant, on July 7. J ZOLOFT, which is a selective serotonin reuptake inhibitor (SSRI) developed by Pfizer of the US, was initially approved in the UK in 1990, and is now available in 110 countries worldwide.