Correct spelling for the English word "hectine" is [hˈɛktiːn], [hˈɛktiːn], [h_ˈɛ_k_t_iː_n] (IPA phonetic alphabet).
One of a group of phenylsulphonic derivatives of arsenic, recommended in the treatment of syphilis, in hypodermic doses of gr. 1 1/2 (0.1) daily for ten to twenty days.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.