<span>Five classes of anti-depressants - <br><br><ul><li><span>SSRIs<br></span></li><li><span>SNRIs<br></span></li><li><span>MAOs<br></span></li><li><span>TCAs<br></span></li><li><span>Atypical antidepressants</span>
</li></ul></span><br>Selective Serotonin Reuptake Inhibitors (SSRIs)
<br><br>There are a number of antidepressants that work by preventing the reabsorption (reuptake) of neurotransmitters into the body. Collectively known as reuptake inhibitors, they prevent the reuptake of one or more neurotransmitters so that more are available and active in the brain.
<br><br>Selective serotonin reuptake inhibitors (SSRIs) work by specifically inhibiting the reuptake of serotonin. SSRIs are a newer class of antidepressants first developed during the 1970s.
<br><br>Examples include:
<br><br><ul>
<ul><li>Prozac (fluoxetine)</li><li>Paxil (paroxetine)</li><li>Zoloft (sertraline)</li><li>Celexa (citalopram)</li><li>Luvox (fluvoxamine)</li><li>Lexapro (escitalopram)</li><li>Viibryd (vilazodone)
</li></ul>






</ul>
SSRIs tend to have fewer side effects than older antidepressants but are still known to nausea, insomnia, nervousness, tremors, and sexual dysfunction.
<br><br>In addition to treating depressions, SSRIs are also sometimes used to treat obsessive-compulsive disorder (OCD), generalized anxiety disorder (GAD), eating disorders, and premature ejaculations. They have also proved helpful during stroke recovery.
<br><br><b>Effects</b>
<br>These more modern antidepressants have fewer changes in the slow activity (associated with less viscero/autonomic side-effect), with a mild fronto-central beta increase in the range of 18-25 Hz and a decrease in alpha anteriorly.