Correct spelling for the English word "maretin" is [mˈaɹɪtˌɪn], [mˈaɹɪtˌɪn], [m_ˈa_ɹ_ɪ_t_ˌɪ_n] (IPA phonetic alphabet).
Trade name for a coal-tar derivative, metatolylhydrazine carbaminate, or carbamic acid tolylhydracid; a white crystalline substance employed as an antipyretic and analgesic in doses of gr. 3-10 (0.2-0.6).
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.