Synonyms: Hydrazinecarboximidamide, 2-[(5-methoxy-1H-indol-3-yl)methylene]-N-pentyl-, (2Z)-2-butenedioate (1:1), Hydrazinecarboximidamide, 2-[(5-methoxy-1H-indol-3-yl)methylene]-N-pentyl-, (Z)-2-butenedioate (1:1), HTF 919, SDZ-HTF 919, Tegaserod hydrogen maleate, Tegaserod maleate, Tegibs 6, Zelmac, Zelnorm