Ingested marihuana-filled balloons.

Three cases of ingestion of balloons containing marihuana are reported. In 2 patients, balloons caused intestinal obstruction. In another patient, there were symptoms of drug overdose when the contents of the balloon spilled into the intestinal tract. Pure marihuana in the gastrointestinal tract has not been reported to cause death by intoxication; however, it may be mixed with more potent substances, especially cocaine. The ingested drug or drugs should be identified as soon as possible to avoid lethal intoxication if a balloon ruptures. A balloon containing drugs will usually pass spontaneously through an uncompromised gastrointestinal tract. Nonoperative management seems appropriate if the substance has been determined to be only marihuana.