From guidance on using illegal and legal substances to get high or avoid overdoses, to advice for accidentally doubling a dose of Tylenol, or what to do if a toddler chews on a houseplant, Americans are increasingly turning to AI chat tools for trustworthy medical advice. Health experts at California Poison Control System (CPCS) say many of those questions share something critical in common: they should be directed to free Poison Control hotlines or other healthcare professionals, not the internet.
CPCS hotlines provide free, confidential, real-time, individualized guidance from medical professionals who specialize in toxicology, and are available 24/7/365. CPCS says some of the most frequently asked “Is this bad?” questions involve medication dosing errors, mixing alcohol with prescriptions, children ingesting household items, and exposure to cleaning products, supplements, THC edibles, or nicotine. While many exposures turn out to be harmless, others are time-sensitive and the difference is not always obvious.
“AI assistants can explain what a substance is, but they can’t safely evaluate an exposure,” said Dr. Craig Smollin, Professor of Emergency Medicine at UCSF Medical Center and Medical Director for the San Francisco Division of CPCS. “Age, weight, dosage, timing and the exact product involved all determine risk. That kind of real-world decision-making is why Poison Control hotlines exist.”
What’s more, pointed out Dr. Smollin, chatbots often start out with good advice but can eventually move into providing unsafe responses to drug and medical queries. This can happen when users prompt AI chatbots, such as ChatGPT, into providing unsafe information by asking the same questions in different ways.
Common situations that should prompt a call to CPCS include:
Taking too much or the wrong dose of a medication;
Giving a child an adult dose or duplicate dose;
Mixing medications, supplements, or alcohol;
Children swallowing vitamins, gummies, toothpaste, or unknown substances;
Exposure to cleaning chemicals, fumes, or pesticides;
Ingestion of THC edibles, nicotine products, or vape liquids;
Eating unidentified plants, berries, or wild mushrooms.
One of the most persistent misconceptions is that calling CPCS automatically leads to an emergency room visit. In reality, specialists often help callers safely manage situations at home while also identifying when urgent care is truly necessary. Health professionals emphasize a simple rule of thumb: if the question starts with “I accidentally took…”, “My child ate…”, or “Is this toxic?”, California Poison Control System should be the first call at 1-800-222-1222.
As online health information continues to grow, experts stress that some questions still require a human voice on the other end of the line, especially when minutes matter.
Trained pharmacists, nurses and other providers are available to help 24 hours a day, seven days a week. The service is free, confidential and interpreters are available. CPCS is part of the University of California San Francisco School of Pharmacy and is responsible to the California Emergency Medical Services Authority.
