According to the school district, administrators confiscated a small package of pink pills purchased online called SNURF.
The pills are being analyzed by Newtown police.
The district say three of the four 10th graders had some signs of an altered state. Three of those students were treated and released from St. Mary's Hospital. One is still being treated.
Police say SNURF is an herbal supplement which mimics the effects of the drug ectasy.
Investigators don't know much about SNURF, but it appears popular among recreational drug users.
Council Rock officials notified other students who may be in possession of the substance to destroy it immediately, but so far, no one else is believed to have it.
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