The packages came from the UK, US and Spain.
A €38,000 drug seizure has been made at Athlone Mail Centre.
Revenue officers found Herbal cannabis, ketamine, heroin, methamphetamine, MDMA and crack cocaine in parcels which had come from the UK, US and Spain.
They were declared as t-shirts, phone cases and bicycle gloves, destined for delivery to eight different counties.
Investigations into the discovery are ongoing.

Funeral Arrangements Announced For Woman Killed In Midlands Crash
Garda Commissioner Confident Security Operation For EPC Meeting Will Be A Success
Midlands Gardaí Appeal For Witnesses To Fatal Crash
Midlands Security & Defence Analyst Says Hoax Bomb Threats Aimed To Intimidate
Almost €446,000 Allocated To Midlands Community Centres And Clubhouses
Midlands Family Takes On Ireland’s Fittest Family Challenge
5K Fundraiser To Support Motor Neurone Disease Association Takes Place In Westmeath