Last year in April, I was in a psychotic state and thought it would be cheaper and more effective to drink windshield washer fluid that contained methanol/isopropanol. I was drinking it for 5 days before someone noticed in my college and took me to hospital.
The doctors said I had 3000mg/L of methanol in my blood and was lucky I didn't go blind, get kidney failure or die. Here is an image below of my blood report.
I've read that isopropanol blocks alcohol dehydrogenase from metabolising methanol into formic acid, its toxic metabolite but my chart showed no isopropyl alcohol, only methanol, ethylene glycol and diethylene glycol