What are the UK Jockey Club banned substances for horse racing?

In an interview with the BBC's Newsnight, he admitted that he used to take diuretic drugs to keep his weight down. Dettori said he had used a wide range of substances before the Jockey Club banned them in June 1998 after a spate of positive drug tests revealed how prevalent their use was becoming: I took Lasix, pee pills, diuretics, laxatives; all sorts