42% of pills tested for fentanyl contained at least 2 mg of fentanyl, considered a potentially lethal dose.02 to 5.1 milligrams (more than twice the lethal dose) of fentanyl per tablet. DEA analysis has found counterfeit pills ranging from. Two milligrams of fentanyl can be lethal depending on a person’s body size, tolerance and past usage. Producing illicit fentanyl is not an exact science. Because of its potency and low cost, drug dealers have been mixing fentanyl with other drugs including heroin, methamphetamine, and cocaine, increasing the likelihood of a fatal interaction. There is significant risk that illegal drugs have been intentionally contaminated with fentanyl. Because there is no official oversight or quality control, these counterfeit pills often contain lethal doses of fentanyl, with none of the promised drug. Fentanyl is being mixed in with other illicit drugs to increase the potency of the drug, sold as powders and nasal sprays, and increasingly pressed into pills made to look like legitimate prescription opioids. Illicit fentanyl, primarily manufactured in foreign clandestine labs and smuggled into the United States through Mexico, is being distributed across the country and sold on the illegal drug market. Patients prescribed fentanyl should be monitored for potential misuse or abuse.

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Under the supervision of a licensed medical professional, fentanyl has a legitimate medical use. Fentanyl is a Schedule II controlled substance that is similar to morphine but about 100 times more potent. Fentanyl is a synthetic opioid typically used to treat patients with chronic severe pain or severe pain following surgery.

Mg to grams