In the trial, Caleb swallowed about 3 milligrams of a strawberry-flavored syrup twice a day. Once he started treatment, his parents said, the Milwaukee-area boy went 100 days without a seizure, and those he did have lasted less than half as long. Because Caleb's seizures can be triggered by overheating, his parents had kept him indoors on hot days but on the drug, he showed enough progress to go swimming with his friends.