Miami Beach Fire Rescue transported two Fienberg/Fisher K-8 Center students suffering from overdoses Tuesday afternoon.
The school is located at 1410 Washington Avenue.
Miami-Dade County Public Schools spokesman John Schuster said the 14-year-old boys took Molly, a drug similar to ecstasy.
Both teenagers were transported to Mount Sinai Medical Center. They were conscious but complained of a rapid heartbeat, said Schuster.
The incident happened on campus just classes were ending.
The school board will investigate where the teenagers got the drug and whether they should be suspended.