Correct spelling for the English word "scopomannit" is [skˈɒpəmˌanɪt], [skˈɒpəmˌanɪt], [s_k_ˈɒ_p_ə_m_ˌa_n_ɪ_t] (IPA phonetic alphabet).
Scopolamine stable, trade name of an aqueous solution of scopolamine hydrobromide with 10 per cent. of mannite added as a preservative.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.