6. (1) The licensing authority may cancel the registration of any medicine if such cancellation is recommended by the Committee. (2) The Committee shall evaluate every medicine registered before the commencement of this Ordinance and every medicine that may be manufactured or imported after such commencement in order to determine its safety, efficacy and usefulness. (3) If on such evaluation the Committee finds that any such medicine is not safe, efficacious or useful, it may recommend to the licensing authority cancellation of registration of the medicine. (4) The licensing authority may, if it is satisfied that a medicine is sub-standard, suspend the registration of such medicine till he is satisfied that the medicine has attained its standard.