Judgment_paragraph 33 · Upjohn Ltd v The Licensing Authority established by the Medicines Act 1968 and Others (C-120/97)

33As regards decisions revoking marketing authorisations taken by the competent national authorities following complex assessments in the medico-pharmacological field, it does not appear that the only appropriate means of preventing the exercise of rights conferred by Community law from being rendered virtually impossible or excessively difficult would be a procedure for judicial review of national decisions revoking marketing authorisations, empowering the competent national courts and tribunals to substitute their assessment of the facts and, in particular, of the scientific evidence relied on in support of the revocation decision for the assessment made by the national authorities competent to revoke such authorisations.