How should unused Harvoni (ledipasvir + sofosbuvir) 90 mg/400 mg film-coated tablets or waste material be disposed of?

Unused Harvoni 90 mg/400 mg film-coated tablets, listed as Ledipasvir/Sofosbuvir Gilead, or waste material should be disposed of in accordance with local requirements, as this medicinal product may pose a risk to the environment.