As products like weed gummies proliferate, more children and teens are suffering symptoms including seizures and life-threatening breathing problems.

Credit...Tony Cenicola/The New York Times

Supported by

By Danielle IvoryJulie Tate and Megan Twohey

Amy Enochs was texting with other parents, all wondering why their central Ohio elementary school had gone into lockdown, when the school called. Several fourth graders, including Ms. Enochs’s daughter, had eaten marijuana gummies and were being taken to the hospital with racing pulses, nausea and hallucinations.