Credited to Janssen personally in 1969; the published chemistry (J Med Chem 1973, code R 18 553) is by R.A. Stokbroekx and colleagues with Janssen as senior author, so 'his hand plus his group' is the honest reading. Marketed as Imodium from 1973.
packagingPolish pharmacy pack of Loperamid WZF 2 mg tablets (Polfa Warszawa): purple-and-white carton of 30 with silver blister strips of small round white tablets. Jacek Halicki ·CC BY-SApackagingRussian-market Imodium box of loperamide 2 mg orally disintegrating tablets, teal carton over a peel-open blister card; sold worldwide under the Imodium brand. Xapkov ·CC BY-SA