Date-rape drug at center of Cornell sex assault allegations can leave victims unaware of surroundings

article The fraternity house at the center of a rape allegation is shown on the campus of Cornell University on Oct. 8, 2026, in Ithaca, New York. (Ryan Murphy/Getty Images) An investigation into an alleged gang rape at a Cornell University fraternity has thrust the illicit use of ketamine into the spotlight, calling attention to the powerful anesthetic’s use on college campuses as a date-rape drug. A former Cornell student testified before the university’s hearing panel that ketamine made her feel "like her lights were on but no one was home," describing a state of "vague consciousness." During an appearance on "Fox & Friends" on Wednesday, Oct. 28, Dr. Stephanie Widmer, a Fox News contributor and addiction specialist in New York, warned that the drug’s physiological effects can leave people unable to defend themselves or understand their environment. INSIDE EXPLOSIVE CORNELL RAPE ALLEGATIONS: 7 MEN ACCUSED, CONFLICTING ACCOUNTS AND A POLITICAL FIRESTORM "When you say the lights are on, but nobody’s home, that’s a pretty good way to describe it," Widmer said.  "You can essentially have no awareness of your surroundings." Ketamine affects NMDA receptors in the brain and can alter vital signs, according to the doctor. Even though ketamine has legitimate medical uses, its effect on brain receptors has led to the drug being abused recreationally at parties, raves and nightclubs. (Photo by RJ Sangosti/MediaNews Group/The Denver Post via Getty Images) "It can cause profound sedation, and it can cause dissociation, which is essentially the sensation of your brain not really being attached to your body," she said. CLICK HERE FOR MORE HEALTH STORIES While ketamine has legitimate medical uses — it was used as a battlefield anesthetic during the Vietnam War and remains FDA-approved for general anesthesia — the drug is also abused recreationally at parties, raves and nightclubs. The Drug Enforcement Administration classifies ketamine as a Schedule III controlled substance and identifies it, alongside Rohypnol and GHB, as a drug that can be used to facilitate sexual assault. The agency says these substances can cause sedation, confusion and memory loss, leaving victims vulnerable. When asked why ketamine falls into the category of date-rape drugs, Widmer said it can affect both cognitive function and physical awareness. CLICK HERE TO SIGN UP FOR OUR HEALTH NEWSLETTER "There are a number of date-rape drugs that are out there, and ketamine does fall into that category because of what it can do to your sensorium," she added. Widmer also warned about mixing ketamine with alcohol or other substances, which can compound the drugs’ effects and increase the risk of dangerous sedation and respiratory depression. TEST YOURSELF WITH OUR LATEST LIFESTYLE QUIZ "They’re combining them with other substances, they’re combining them with alcohol, and that can compound the effects of these drugs," she said. "It can cause really profound sedation. It can be incredibly dangerous." CLICK HERE TO DOWNLOAD THE FOX NEWS APP Widmer said her biggest concern is how parents discuss the dangers of drugs with their children, especially before sending them off to college. "Everybody knows to say drugs are bad and not to do drugs, and you never know what you’re getting, but really understanding what some of these drugs can do is really important. … They’re not benign and they can cause dissociation." Khloe Quill is a lifestyle writer with Fox News Digital. She and the lifestyle team cover a range of story topics including food and drink, travel, and health.  Click here for the latest updates to this story from FOXNews.com.  Crime and Public SafetyHealth