13.—(1) The restrictions imposed by section 52(c) of the Act shall not apply to the retail sale of a veterinary drug described in article 3(1) or (3)(a) or (b) where the transaction is carried out in a registered pharmacy by a person acting on behalf of a pharmacist.
(2) The restrictions imposed by section 52 of the Act shall not apply to the supply in circumstances corresponding to retail sale of a veterinary drug such as is described in article 9(1), (3) or (5) by a pharmacist, or his agent, to the person to whom the pharmacist has, in accordance with the provisions of the said section 52, sold the drug by retail.