medicinal productincludes any substance or article specified in the Medicines (Dental Filling Substances) Order 1975 or in the Medicines (Radioactive Substances) Order 1978;
radioactive medicinal productmeans a medicinal product which is, which contains or which generates a radioactive substance and which is, contains or generates that substance in order, when administered, to utilize the radiation emitted therefrom;
radioactive substancemeans any substance that contains one or more radionuclides of which the activity or the concentration cannot be disregarded as far as radiation protection is concerned;
the Actmeans the Medicines Act 1968;
the time allowedmeans the period of twenty-eight days after the service of a notice under paragraph (1) of this regulation or such extended period as the Health Ministers may in any particular case allow.