Correct spelling for the English word "syphilodol" is [sˈa͡ɪfɪlˌɒdɒl], [sˈaɪfɪlˌɒdɒl], [s_ˈaɪ_f_ɪ_l_ˌɒ_d_ɒ_l] (IPA phonetic alphabet).
Trade name of a substance compounded of silver, arsenic, and anti, mony, offered for the treatment of syphilis, yaws and various protozoal diseases as a substitute for salvarsan and similar substances; a yellow powder of acid reaction, soluble in water, or yellowish brown tablets; administered by intravenous injection and per os.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.