35. No patent or proprietary medicine or pharmaceutical speciality or any other medicine, whether allopathic, unani, ayurvedic, homoeopathic or biochemic, for the time being not recognised by the accepted pharmacopoeias, shall be offered for sale to the public or advertised for such sale, unless two samples thereof shall have been sent to the Director, Central Drugs Laboratory, and the latter shall have determined that the medicine or speciality is suitable or proper for use by the public.