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On 16 February 2022, the Committee for Veterinary Medicinal Products (CVMP) adopted a positive opinion1, recommending the granting of a marketing authorisation for the veterinary medicinal product Chanaxin, solution for injection, intended for cattle, pigs and sheep. The applicant for this veterinary medicinal product is Chanelle Pharmaceuticals Manufacturing Ltd.

Chanaxin is an antibacterial medicinal product for systemic use containing tulathromycin, (macrolide) (ATCvet code QJ01FA94) as active substance. Macrolides are bacteriostatic acting antibiotics and inhibit essential protein biosynthesis by virtue of their selective binding to bacterial ribosomal RNA. They act by stimulating the dissociation of peptidyl-tRNA from the ribosome during the translocation process.

Chanaxin is a generic of Draxxin, which has been authorised in the EU since 11 November 2003. Studies have demonstrated the satisfactory quality of Chanaxin, and its bioequivalence to the reference product Draxxin.


Treatment and metaphylaxis of bovine respiratory disease (BRD) associated with Mannheimia haemolytica, Pasteurella multocida, Histophilus somni and Mycoplasma bovis susceptible to tulathromycin. The presence of the disease in the group must be established before the product is used.

Treatment of infectious bovine keratoconjunctivitis (IBK) associated with Moraxella bovis susceptible to tulathromycin.


Treatment and metaphylaxis of swine respiratory disease (SRD) associated with Actinobacillus pleuropneumoniae, Pasteurella multocida, Mycoplasma hyopneumoniae, Haemophilus parasuis and Bordetella bronchiseptica susceptible to tulathromycin. The presence of the disease in the group must be established before the product is used. The product should only be used if pigs are expected to develop the disease within 2-3 days.


Treatment of the early stages of infectious pododermatitis (foot rot) associated with virulent Dichelobacter nodosus requiring systemic treatment.

Detailed conditions for the use of this product are described in the summary of product characteristics (SPC) which will be published in the European public assessment report (EPAR) and will be available in all official European Union languages after the marketing authorisation has been granted by the European Commission.

The CVMP, on the basis of quality, safety and efficacy data submitted, considers that there is a favourable benefit-risk balance for Chanaxin and therefore recommends the granting of the marketing authorisation.

Applicants may appeal any CVMP opinion, provided they notify the European Medicines Agency in writing of their intention to appeal within 15 days of receipt of the opinion.

Key facts

Agency product number
International non-proprietary name (INN) or common name
  • tulathromycin
Active substance
  • tulathromycin
Date opinion adopted
Company name
Chanelle Pharmaceuticals Manufacturing Ltd
Application type
Initial authorisation

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