The haul was estimated to have a street value of £500,000
Six men are due to appear at Coleraine Magistrates Court on Monday in connection with the seizure of ecstasy in Portstewart.
The drugs worth an estimated £500,000 were seized on Friday.
The six men, aged 20 to 26, have been charged with a number of offences including possession of Class A drugs with intent to supply, and conspiracy to supply Class A drugs.
A 35-year-old man who was arrested has been released unconditionally.
