Article 41
1. After an authorisation has been granted in accordance with this Regulation, the holder of the marketing authorisation shall, in respect of the methods of manufacture and control provided for in Article 12(3)(d) and (i) of Directive 2001/82/EC, take account of technical and scientific progress and make any variations that may be required to enable the medicinal products to be manufactured and checked by means of generally accepted scientific methods. He shall apply for approval of these variations in accordance with this Regulation. 2. The competent authority of a Member State or the Agency may require the holder of the marketing authorisation to provide substances in sufficient quantities for the performance of tests to detect the presence of residues of the veterinary medicinal products concerned in foodstuffs of animal origin. 3. At the request of the competent authority of a Member State or the Agency, the holder of the marketing authorisation shall provide technical expertise to facilitate the implementation of the analytical method for detecting residues of veterinary medicinal products by the Community reference laboratory or, where appropriate, national reference laboratories designated in accordance with Council Directive 96/23/EC of 29 April 1996 on measures to monitor certain substances and residues thereof in live animals and animal products(18). 4. The holder of the marketing authorisation shall forthwith supply to the Agency, the Commission and the Member States any new information which might entail the variation of the particulars or documents referred to in Articles 12(3), 13, 13a, 13b and 14 of Directive 2001/82/EC, in Annex I thereto, or in Article 34(4) of this Regulation. He shall forthwith inform the Agency, the Commission and the Member States of any prohibition or restriction imposed by the competent authorities of any country in which the veterinary medicinal product is marketed and of any other new information which might influence the evaluation of the benefits and risks of the veterinary medicinal product concerned. In order that the risk-benefit balance may be continuously assessed, the Agency may at any time ask the holder of the marketing authorisation to forward data justifying that the risk-benefit balance remains favourable. 5. If the holder of the marketing authorisation for the veterinary medicinal product proposes to make any variation of the particulars and documents referred to in paragraph 4, he shall submit the relevant application to the Agency. 6. The Commission shall, after consulting the Agency, adopt appropriate provisions for the examination of variations to marketing authorisations in the form of a regulation in accordance with the procedure referred to in Article 87(2).