Vera Twomey stated medicine that was prescribed for her daughter, which appeared to be medicinal cannabis, was confiscated by customs officers at Dublin Airport.
Ms Twomey has launched a campaign from her daughter Ava, who has a rare form of epilepsy, in order to be allowed to use medicinal cannabis in Ireland.
She made a trip to Barcelona this week where she received a prescription for cannabis oil and she was escorted back from Spain to Dublin by People Before Profit TD Gino Kenny and MEP Luke Flanagan.
Ms Twomey told that the cannabis was apprehended, and she was taken into custody by customs agents for about an hour at Dublin Airport, RTE reports.
Last month, Vera met Health Minister Simon Harris with claims that families with similar problems don`t have consultants who would be able to prescribe medicinal cannabis and appealed to Mr Harris to do something about that.
Department of Health says it is open to the Health Minister to take up an issue of giving a grant for license under the Misuse of Drugs Acts where the course of treatment, which was offered, has been approved by a consultant.