Changes to Medicines (Stilbenes and Thyrostatic Substances Prohibition) 1982
S.I. 1982/518
Made by Medicines (Stilbenes and Thyrostatic Substances Prohibition) 1997
2 changes. All changes to Medicines (Stilbenes and Thyrostatic Substances Prohibition) 1982
From legislation.gov.uk's record of changes, the official one: see it there.