DRUGS
Drug therapy is currently the most commonly used treatment for OCD, the most commonly used drugs are antidepressants, although antianxiety drugs may be used.
Antidepressants are used to reduce the anxiety associated with OCD. SSRIs such as Prozac increase levels of the neurotransmitter serotonin with regulates mood and anxiety. Another antidepressant tricyclic clomipramine was the first antidepressant used primarily for OCD rather than depression. They block the transporter mechanism that re-absorbs both serotonin and noradrenaline. As a result, more of these neurotransmitters are left in the synapse which prolongs their activity, and easing the transition of the next impulse.
Anti-anxiety drugs such as BZ's slow down the activity of the central nervous system by enhancing the activity of GABA, a neurotransmitter that, when released, has a calming effect on many of the neurons in the brain. It does this by reacting with special sites on the outside of the recieving neurons, a flow of chloride ions is produced. They make it harder for the neuron to be stimulated by other neurotransmitters, thus slowing down activity making the person feel more relaxed.
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