Officers have questioned a woman in her 20s
Revenue officers have seized contraband alcohol, medicines and tobacco products at Dublin Port.
They were discovered in routine operations over the past week.
The products have a combined estimated retail value of almost €9,000.
This includes over 43 litres of spirits, 5kg of unstamped tobacco and medicines - which are suspected to be steroids.
On Monday, the officers seized two packages containing a total 43 litres of spirits originating from Spain and Poland.
In a separate operation on Monday, they seized medicines, suspected to be steroids, with an estimated retail value of €4,500.
The package, which had arrived from Romania, contained 1,640 tablets and over 300 vials of medicines.
And on Wednesday, officers seized a package containing 5kg of unstamped tobacco which originated in Croatia.
Revenue officers questioned a woman aged in her 20s.
The seized alcohol and tobacco products are estimated to have a combined retail value of over €4,400 - representing a potential loss to the exchequer of €3,300.
Investigations into the seizures are ongoing.