Emetine dihydrochloride

As the principal alkaloid of ipecac, Emetine dihydrochloride is derived from Uragoga ipecacuanha ground roots, which is used in the treatment of amebiasis. It can  also be used as an emetic to induce vomiting.
Emetine dihydrochloride functions by inhibiting ribosome movement along mRNA, which results in irreversibly blocking protein synthesis in eukaryotic cells  instead of prokaryotic cells. Besides, it has been proved that it can induce hypotension through blocking adrenoreceptors.