Definition of patent or proprietary medicines now covers medicinal preparations bearing non pharmacopoeial or brand names indicating trade connection. Amendment substitutes Explanation 1 to define 'patent or proprietary medicines' as any medicinal preparation bearing a name not specified in a Pharmacopoeia monograph, Formulary or notified publication, or bearing a brand name or registered trade mark, and includes any mark (symbol, monogram, label, signature, invented words or writing) used to indicate a trade connection to a person entitled to use that name or mark.