Explanation I 'Patent or Proprietary Medicines ' means any drug or medicinal preparation, in whatever form, for use in the internal or external treatment of, or for the prevention of ailments in human beings or animals which bears either or itself or on its container or both, a name which is not specified in a monograph in a pharmacopoeia, formulacy or other publications notified in this behalf by the Central Government in the Official Gazette, or which is a brand name, that is, a name or a registered trade mark under the (43 of 1958), or any other mark such as a symbol, monogram, label, signature or invented words or any writing which is used in relation to that medicine for the purpose of indicating or so as to indicate a connection in the course of trade between the medicine and some person, having the right either as a proprietor or otherwise to use the name or mark with or without any indication of the identity of that person.