https://clinicaltrials.gov/ct2/show/NCT01729260"The mebendazole will be given by mouth three times every day on a 28 day cycle. it's in the form of 500 mg chewable tablets, to be taken with meals." 500 x 3 = 1500 mg daily. However in publications the authors have suggested doses much higher than this, in the range of 100 mg/kg per day.
You are amazing, Stephen! Thank you so much