my friend had a stroke in Canada while on duty as a police officer. The stroke drug was used at some hospitals but not others. The ambulance took him to a hospital that did not use the drug and he lost use of his left side. That was 20 plus years ago. Two years ago a 80 year old friend collapsed from a stroke, got the drug in 40 minutes and recovered fully in about a week. Perhaps all hospitals in Thailand use the drug but I think it needs to be given with in 90 minutes.