The 46-year-old East Fife coach collapsed in the showers after the team's goal-less draw with Queen of the South on Saturday.
Durie, who suffers from asthma, had complained of feeling unwell after the match at Bayview Stadium, Methil. Minutes later he collapsed in front of his shocked players, who alerted the club's doctor.
The Paisley-born coach received medical treatment at the stadium before being taken to Victoria Hospital in Kircaldy, where he was kept in overnight for tests.
His son Scott, who plays for East Fife, Tweeted that his father had suffered an allergic reaction, and the club wished Durie well on its official Twitter page on Saturday night.
Gers fans also posted messages of support on the club's official website.
East Fife chairman Sid Collumbine said: "Gordon was starting to feel better when he was being taken out on a stretcher but the paramedics weren't taking any chances and insisted he go to hospital."
Durie, who played 43 times for Scotland and enjoyed the most successful period of his career at Rangers, took over as manager of the Second Division team in March.