10. SSRI Discontinuation Syndrome The abrupt discontinuation of an SSRI (especially one with a shorter half-life such as paroxetine, sertraline, or fluvoxamine) has been associated with a syndrome that way include: somatic and psychological symptoms. (i) Somatic symptoms : dysequilibrium (dizziness, vertigo and ataxia), tremor, fatigue and migraine-like auras. (ii) Psychological symptoms : anxiety, agitation, lowered mood, confusion, memory problems, and vivid dreams.