Narcolepsy and other diseases are treated with modafinil, a wakefulness-promoting drug that comes in names like Modvigil 200 mg. Modafinil improves alertness and attention, but in some people, it might exacerbate OCD (Obsessive-Compulsive Disorder) symptoms. This is because it raises dopamine, a neurotransmitter that is also implicated in OCD pathways, in the brain. Sensitive users have been reported to exhibit more compulsive actions or obsessive thinking, albeit these are uncommon. Modvigil 200 should be used carefully and under medical supervision if you have OCD or are prone to anxiety problems. Before beginning or maintaining modafinil, always get medical advice if you see that your mental health problems are getting worse.