Decades ago, scientists looked at psychedelic drugs as tools that could help improve people’s mental health.

Then came counterculture, Woodstock, hallucinogenic trips - and a backlash against the drugs.

But now hallucinogens are once again being examined for their unique ability to treat mental health issues that existing pharmaceutical drugs cannot. And Australia is at the forefront of this research.

The Age social affairs editor Jewel Topsfield joins Chris Zappone to discuss medicinal psychedelics.