The Number of Marijuana User ER Visits Rises at Denver Hospitals, Study Reports

Five years after Colorado first legalized marijuana, a new study shows pot's bad effects are sending more people to the emergency room.

Inhaled marijuana caused the most severe problems at one large Denver area hospital. Marijuana-infused foods and candies, called edibles, also led to trouble. Patients came to the ER with symptoms such as repeated vomiting, racing hearts and psychotic episodes.

Five years after Colorado first legalized marijuana, a new study shows pot's bad effects are sending more people to the emergency room. Inhaled marijuana caused the most severe problems at one large Denver area hospital. Marijuana-infused foods and candies, called edibles, also led to trouble. Patients came to the ER with symptoms such as repeated vomiting, racing hearts and psychotic episodes.