19.—(1) Subject to paragraph (3) and regulation 21, every person authorised by or under regulation 5 or 8 to supply any drug specified in Schedule 1 or 2 shall comply with the following requirements, that is to say—
(a)he shall, in accordance with the provisions of this regulation and of regulation 20, keep a register and shall enter therein in chronological sequence in the form specified in Part I or Part II of Schedule 6, as the case may require, particulars of every quantity of a drug specified in Schedule 1 or 2 obtained by him and of every quantity of such a drug supplied (whether by way of administration or otherwise) by him whether to persons within or outside Great Britain;
(b)he shall use a separate register or separate part of the register for entries made in respect of each class of drugs, and each of the drugs specified in paragraphs 1 and 3 of Schedule 1 and paragraphs 1, 3 and 6 of Schedule 2 together with its salts and any preparation or other product containing it or any of its salts shall be treated as a separate class, so however that any stereoisomeric form of a drug or its salts shall be classed with that drug.
(2) Nothing in paragraph (1) shall be taken as preventing the use of a separate section within a register or separate part of a register in respect of different drugs or strengths of drugs comprised within the class of drugs to which that register or separate part relates.
(3) The foregoing provisions of this regulation shall not have effect in relation to—
(a)in the case of a drug supplied to him for the purpose of destruction in pursuance of regulation 6(2) or (3), a practitioner or pharmacist;
(b)a person licensed under regulation 5 to supply any drug, where the licence so directs; or
(c)the sister or acting sister for the time being in charge of a ward, theatre or other department in a hospital or nursing home.