<unk>  (INN), also known as chrysazin or 1,8-dihydroxyanthraquinone, is an organic substance, formally derived from anthraquinone by the replacement of two hydrogen atoms by hydroxyl groups (–OH).  It is used in some countries as a stimulant laxative.
It should not be confused with ondansetron, an unrelated drug that was marketed in South Africa under the trade name<unk> ".
Dantron
Thiopropazate
Azidomorphine
Domiphen
Bunaftine
Droperidol
Perazine
Fenpiprane