Houston Fire Department told ABC13 a female patient was taken to the hospital.
It's not known the age or the circumstances of the reported overdose.
ABC13 has reached out to Houston ISD for comment on the incident.
The medical episode comes in the midst of growing calls to ban e-cigarettes and vaping devices over deaths citing their use.
SEE ALSO:
Vaping crisis has now reached Texas elementary schools
Elementary kids among 1000s caught vaping at schools
New ways teens are hiding vaping habits in plain sight from adults
Vaping devices can be hidden in plain sight
Health officials issue warning after 3 Houston teens hospitalized due to vaping
3 teens stricken with lung ailment from vaping: officials