The eight week-old fox was found on Maryhill Road with concussion earlier this month.
The animal was suffering from shock from a bump to his head when he was found on April 2.
Animal rescue officers, who have since named the cub Nevada, believe that he may have been dropped by his mother by accident.
Nevada is the second fox cub to be rescued by the Scottish SPCA in recent weeks, as fellow cub Utah was found without her mother in North Lanarkshire last month.
Both cubs are currently being cared for at the Clackmannanshire SPCA centre.
Centre manager Colin Seddon said, “Nevada was very weak at first and had to be put on a drip. Thankfully, he has perked up and is growing stronger day by day.
“We are hopeful that Nevada will make a full recovery, largely thanks to the emergency care given to him by the vet the night he was found.
“We will continue to do everything we can to enable him to return to the wild fit, healthy and able to fend for himself.”
He said both foxes would be released at carefully-selected sites when they are at the right stage to be able to survive on their own in the wild.