Correct spelling for the English word "tampicin" is [tˈampɪsˌɪn], [tˈampɪsˌɪn], [t_ˈa_m_p_ɪ_s_ˌɪ_n] (IPA phonetic alphabet).
A resin from Ipomaea simulans, Tampico jalap; laxative in small doses, purgative in large ones.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.