Biological Therapies (drugs) for Treating OCD.

How they work: Anti-depressants work by raising levels of Serotonin in the brain (as low levels of Serotonin have been linked with an increased likelihood of OCD). In “normal” brains, Serotonin is constantly being released from the nerve endings, stimulating the adjacent neurons. However, sometimes the mechanism fails and the Serotonin is reabsorbed into the nerve ending before it can stimulate the neighbouring neuron. Prozac works by reducing the rate of re-absorption meaning that Serotonin levels don’t drop and the patient’s mood can remain constant (they are less likely to suffer from obsessive thoughts and compulsions). Prozac is usually taken over the course of weeks, months or even years and as well as being successful in treating obsessive compulsive disorder.