They were discovered in a consignment which arrived from Hungary
Revenue officers at Dublin Port have seized 30,000 Alprazolam tablets.
They were discovered when officers stopped and searched a consignment labelled as 'computer chips' which had arrived from Hungary.
The tablets, branded 'Ksalol', have an estimated retail value of €60,000.
Investigations regarding the importation are ongoing.
Alprazolam is mainly used for the treatment of anxiety disorders.