Five Buena Vista University students who became sick Monday after consuming too much caffeine during a class experiment were released from the hospital Wednesday.
School spokeswoman Jennifer Felton said the students can return to class, and an investigation into the incident is ongoing.
Additional details were not available.
Earlier we reported that:
STORM LAKE, Iowa -- Five Buena Vista University students were hospitalized Monday after they consumed too much caffeine during a physiology experiment.
School spokeswoman Jennifer Felton said it appears the students mixed caffeine into a drink. The students had elevated heart rates, nervousness, vomiting and delirium and were transported to Buena Vista Regional Medical Center for treatment.
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The students, all undergraduates, were expected to remain at the medical center until Wednesday, Felton said.
The students conducted their experiment in the Estelle Siebens Science Center on campus, but Felton said she did not know what the students were studying.
All experiments involving human participants have been suspended pending the results of an investigation, Felton said.
A professor in charge of the class was also placed on paid leave, Felton said. Felton would not identify the teacher.
-- Nate Robson