You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Neurotransmitter mainly involved in OCD is : and explain in detail?
Serotonergic system is implicated in the pathogenesis of OCD. Therefore selective serotonergic reuptake inhibitors is used to relieve OCD symptoms.