A regimen recommended by PERC uses oral prednisolone as follows: Days 1 to 14: 10 mg 4 times a day Days 15 to 19: 10 mg 3 times a day Days 20 to 24: 10 mg 2 times a day Days 25 to 29: 10 mg once a day Vigabatrin is the drug of choice when the spasms are caused by tuberous sclerosis complex.