<unk>  (pyridylcarbinol) is a niacin derivative used as a hypolipidemic agent and as a vasodilator.  It causes flushing and may decrease blood pressure.
Nicotinyl alcohol
Cyclochlorotine
N-Nitrosonornicotine
Nitisinone
4-Methylmethcathinone
Methanol
Citicoline
Copper usnate