Section 7(3) of the Misuse of Drugs Act 1971 requires regulations to be made to allow the use for medical purposes of the drugs which are subject to control under that Act. Section 7(3) does not apply to any drug designated by order under section 7(4) as a drug to which section 7(4) is to apply. Cannabis is designated in paragraph 1(a) of Part 1 of the Schedule to the Misuse of Drugs (Designation) Order 2001 as a drug to which section 7(4) applies, and this Order specifically excludes the cannabis-based medicine “Sativex” from such designation.