Mechanism of action: Inhibit the reuptake of neurotransmitter serotonin by the PRESYNAPTIC neuron.
Uses: Depression, OCD, Anxiety, & PTSD
Examples: Citalopram, Paroxetine, Flouxetine, & Sertraline. (Note the endings, especially -talopram).
Time to work: Symptoms improve within 4 to 6 weeks.
Safety: Avoid taking extra serotonin to prevent serotonin syndrome (MAO inhibitors & St. John Wort).
Side Effects
7 S’s:
Stomach upset (GI upset)
Sexual dysfunction
Serotonin syndrome – incidence increases with other serotonergic agents (i.e. MAOs) – hyperthermia, muscle rigidity, flushing, diarrhea
Sleep difficulties (insomnia)
Suicidal thoughts ( mostly in younger clients)
Stress (agitation, anxiety)
Size increase / Weight gain
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Discontinuation Syndrome: Stomach pain, diarrhea, insomnia, and ataxia. Someone with these symptoms ask: When was your last dose? NCLEX
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Serotonin Syndrome (Taking too much or taking with other medications such as MAO inhibitors)