Media reports say that after finding the painkillers in her suitcase at an airport, Egyptian authorities made the British shop worker sign a 38-page statement in Arabic. She believed she would be able to leave the airport afterwards and begin her two-week break by Red Sea.
The British lady, suspected of drug trafficking by Egyptian authorities, was put into a prison cell with 25 other women, where she has stayed for a month.
Tramadol, a strong painkiller, is legal in the UK but users must have a prescription.
However, the substance, which is known to be used as a heroin substance and also by terrorists to increase their battlefield resistance, is illegal in Egypt.