Correct spelling for the English word "cahincin" is [kˈahɪnsˌɪn], [kˈahɪnsˌɪn], [k_ˈa_h_ɪ_n_s_ˌɪ_n] (IPA phonetic alphabet).
Cahincic acid, occurs in the form of white silky needles, of very bitter taste; diuretic and purgative in doses of gr. 2-4 (0.13-0.25).
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.