Heredity appears to be a strong factor. If you have OCD, there's a 25-percent chance that one of your immediate family members will have it. It definitely seems to run in families. Yes, with medication and behavior therapy. Both affect brain chemistry, which in turn affects behavior.
Medication can regulate serotonin, reducing obsessive thoughts and compulsive behaviors.
The most commonly reported side effects of this medication are dry mouth, constipation, nausea, increased appetite, weight gain, sleepiness, fatigue, tremor, dizziness, nervousness, sweating, visual changes, and sexual dysfunction. There is also a risk of seizures, thought to be dose-related. People with a history of seizures should not take this medication. Dry mouth, nausea, diarrhea, sleepiness, insomnia, tremor, nervousness, headache, weakness, sweating, rash, and sexual dysfunction are among the more common side effects associated with this drug. SSRIs should never be taken at the same time as MAOIs.