<unk>  (trade name Aphthasol) is an anti-inflammatory antiallergic immunomodulator used to treat recurrent aphthous ulcers (canker sores), and (in Japan) several inflammatory conditions. This drug has been discontinued in the U.S.
Amlexanox
Avacopan
Zipeprol
Tyloxapol
Alosetron
Tropisetron
Tasimelteon
Glafenine