The correct answer is "antidepressant drugs".
Antidepressants are drugs commonly used to treat depression, anxiety and phobias, and obsessive-compulsive disorders. There are many different types of antidepressants which differ based on their mechanisms. All of them target the serotonergic system of the human brain. They are not considered addictive but they can cause many different negative side effects.
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The drug is: Niacin, or nicotinic acid (vitamin B3, ou PP) (do not confuse with nicotine)
Nicotinic acid, or niacin, is known for its normolipidemic properties since the 1950s. It was the subject of the first trial of cardiovascular prevention by intervention on the lipidic factor, the coronary drug project (CDP). Despite significant side effects, mainly flushing, it has since been used, mainly in the United States, as a treatment for mixed hyperlipidemias, thanks to its hypotriglyceridemic effect for the increase of HDL-cholesterol.