Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

News: What is rainbow fentanyl? Colorful... (CNN News) - Behind the headlines

In the news

Media coverage of health and science topics

CNN News Sept. 25, 2022

What is rainbow fentanyl? Colorful pills drive new warnings about deadliest drug in the US | CNN

A new wave of concern has spread across the United States over multi-colored "rainbow fentanyl" pills, powders and blocks -- that look similar to candy or sidewalk chalk -- being sold and used in several states, and potentially posing a threat to young people.

Read more at CNN News

Behind the headlines

Research findings and data from the National Library of Medicine

PubMed articles

Drug Alcohol Depend MAY 1, 2022

Trends in seizures of powders and pills containing illicit fentanyl in the United States, 2018 through 2021

JJ Palamar et al

Seizures of drugs containing fentanyl have been increasing in the US. Given that over a quarter of fentanyl seizures are now in pill form, people who obtain counterfeit p …

Related content

Similar articles

Reviews

People also viewed

Also of interest

Additional recent and related news

The New York Times MAY 11, 2022

Overdose Deaths Continue Rising, With Fentanyl and Meth Key Culprits

New data shows a surge in overdose deaths involving fentanyl and methamphetamine. Overall, the nation saw a 15 percent increase in deaths from overdoses in 2021.

NIH News Releases MARCH 31, 2022

Law enforcement seizures of pills containing fentanyl increased dramatically between 2018-2021

NIH-supported research highlights growing, dangerous trend, particularly for people new to drug use.

NIH News Releases MAY 13, 2024

Over 115 million pills containing illicit fentanyl seized by law enforcement in 2023

NIH-supported study highlights increasingly dangerous illicit drug supply, risk of pills not coming from a pharmacy.

The New York Times JULY 26, 2022

Biden’s Drug Czar Is Leading the Charge for a ‘Harm Reduction’ Approach

Experts describe the president’s drug control strategy as the most progressive since Richard Nixon appointed the nation’s first drug czar in 1971.

NIH Research Matters APRIL 11, 2023

Buprenorphine use in the emergency department safe for people who use fentanyl

Researchers found that buprenorphine can be safely started in the emergency department by people who use fentanyl either alone or with other drugs.