(NATIONAL) — The U.S. Drug Enforcement Administration (DEA) has identified and put out an alert on several illegal online pharmacies that are selling and shipping counterfeit pills made with fentanyl and methamphetamine. The DEA said that customers in the U.S. are purchasing what they believe are real pharmaceutical drugs such as Oxycodone, Adderall, and Xanax, just to name a few, but according to the DEA, are actually fake pills. DEA: Mexican drug cartels are operating in Southern Colorado "DEA has identified websites being operated in India and the Dominican Republic," according to a public safety alert posted on DEA's website. "Many of these sites purport to be legitimate, U.S. based or FDA approved sites, but are actually working with drug traffickers to fulfill online orders with fake pills." Website operators, according to the DEA, do several things to appear legit including; offering 24-hour customer service, posting online reviews and safety facts, and offering discounts to deceive customers. "Often these illegal, online websites use U.S. website addresses and professional-looking designs to appear legitimate when, in fact, they are not," warned the DEA. "Fake medications can lead to serious health risks, including harmful side effects, ineffective treatment, and even death." How fentanyl ends up in your neighborhood During 'Operation Press Your Luck' announced on Sept. 30, 2024, the DEA investigated a case where a woman in the U.S. died after ordering what she thought was oxycodone from an online pharmacy. "Days after receiving the medication, the victim passed away from acute fentanyl poisoning as a result of taking one of the pills sent to her," wrote the DEA. "The pill looked identical to a real oxycodone, but it was not - it was made with fentanyl and filler." LIST: DEA investigation identifies fake pharmacies www.Curecog.com www.Pharmacystoresonline.com www.Careonlinestore.com www.yourphamacy.online  www.MD724.com www.Greenleafdispensarystore.com www.Whatishydrocodone.weebly.com www.Orderpainkillersonline.com www.USAMedstores.com If you believe you have purchased any medication from the above websites, stop using it immediately and contact your local DEA office. You can also report the incident here. Fentanyl crisis in Colorado: DEA’s warning for parents "The only safe prescription medications are those prescribed by a licensed medical provider and dispensed by a trusted pharmacy," wrote the DEA. "Patients should remain vigilant when purchasing medications online." DEA: Red flags that a website is not legit Sells prescription drugs without requiring a valid prescription from a healthcare provider. Offers much cheaper prices than what is typically seen in the market. Lists prices in a foreign currency. Does not contain proof of a valid pharmacy state license or DEA registration. Medicine arrives in broken or damaged packaging or in a foreign language. Medicine does not have an expiration date or is expired. Medicine looks different from what you have received in the past from your trusted pharmacist. For more information, visit dea.gov/onepill.