# The Diseases of Animals (Northern Ireland) Order 1981, Paragraph 4


Any of the following substances to be administered to swine:-
(a) Para-aminophenylarsonic acid.
Sodium Para-aminophenylarsonic acid.
4-Hydroxy-3-Nitrophenylarsonic acid.
4-Nitrophenylarsonic acid.
4-Ureidophenylarsonic acid.
Arsenosobenzene.
(b) Any other form of arsenic.

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Source: https://www.legislation.gov.uk/nisi/1981/1115/schedule/4/paragraph/4 (the official version)
Page: https://openlegislation.uk/diseases-of-animals-northern-ireland-order-1981/schedule-4/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.