(1) Notwithstanding regulation 41(4) , a pharmaceutical chemist may supply a restricted substance on the instruction of a medical practitioner, veterinary surgeon, dentist, authorised nurse practitioner or authorised optometrist if, because of the urgent circumstances in which the substance is required, it is impracticable, before the substance is required to be supplied, to (a) issue a prescription for the substance; and(b) cause the prescription to be delivered to the chemist.(2) A medical practitioner, veterinary surgeon, dentist, authorised nurse practitioner or authorised optometrist who issues an instruction under subregulation (1) must send to that chemist, within 24 hours of issuing the instruction, a prescription that (a) complies with regulation 41(4) ; and(b) clearly states that it is in confirmation of the instruction to that chemist to supply the restricted substance without a prescription.Penalty: Fine not exceeding 10 penalty units.