Sertraline is a SSRI - a selective serotonin reuptake inhibitor. They definitely cause withdrawals in some people:
/psychcentral.com/lib/ssri-discontinuation-or-withdrawal-syndrome/Sertraline is a Benzodiazepine (a "Benzo") and benzo's can be addictive. I found help through this site to come off the benzo I took for years:
/psychcentral.com/lib/ssri-discontinuation-or-withdrawal-syndrome/