A producer of any drug specified in Schedule 3 or 5 and a wholesale dealer in any such drug shall keep every invoice or other like record issued in respect of each quantity of such a drug obtained by him and in respect of each quantity of such a drug supplied by him.

A person who is authorised under regulation 9(4)(a) to supply any drug specified in Schedule 3 shall keep every invoice or other like record issued in respect of each quantity of such a drug obtained by him and in respect of each quantity of such a drug supplied by him.

A retail dealer in any drug specified in Schedule 3, a person in charge or acting person in charge of a hospital or nursing home and a person in charge of a laboratory shall keep every invoice or other like record issued in respect of each quantity of such a drug obtained by him and in respect of each quantity of such a drug supplied by him.

A retail dealer in any drug specified in Schedule 5 shall keep every invoice or other like record issued in respect of each quantity of such a drug obtained by him.

Every invoice or other record which is required by this regulation to be kept in respect of a drug specified in Schedule 3 shall contain information sufficient to identify the date of the transaction and the person by whom or to whom the drug was supplied.

Every document kept in pursuance of this regulation (other than a health prescription) shall be preserved for a period of two years from the date on which it is issued, except that the keeping of a copy of the document made at any time during the said period of two years shall be treated for the purposes of this paragraph as if it were the keeping of the original document.