cinnamedrine cinnamedrine cinnamedrine (inn, usan), also known as n-cinnamylephedrine, is a sympathomimetic drug with similar effects relative to those of ephedrine. it also has some local anesthetic activity. cinnamedrine was previously used, in combination with analgesics, as an antispasmodic to treat dysmenorrhea in the over-the-counter drug midol in the 1980s. there is a case report of the drug being abused as a psychostimulant. cinnamedrine names iupac name 2-amino]-1-phenylpropan-1-ol identifiers cas number 90-86-8 y chembl chembl2104503 chemspider 4521391 echa infocard 100.001.838 pubchem cid 5370611 unii y1245j8012 y comptox dashboard (epa) dtxsid8057851 inchi inchi=1s/c19h23no/c1-16(19(21)18-13-7-4-8-14-18)20(2)15-9-12-17-10-5-3-6-11-17/h3-14,16,19,21h,15h2,1-2h3/b12-9+key: ymjmzfpzrvmnch-fmivxfbmsa-n properties chemical formula c19h23no molar mass 281.399 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references