Formula: C24H30N2O3
Molar mass: 394.52 g/mol
CAS ID: 59708-52-0
Other names: Methoxycarbonyl-fentanyl
Trade name: Wildnil
SKU: N/A Category: Tag:



Carfentanil or carfentanyl is a structural analog of the synthetic opioid analgesic fentanyl. Carfentanil was first synthesized in 1974 by a team of chemists at Janssen Pharmaceutica which included Paul Janssen. The effects of carfentanil, including overdose, can be reversed by naloxone.
Naloxone has been used to reverse carfentanil overdoses; however, greater than normal doses are requiredto revive those who have overdosed. In response to the current opioid crisis in Alberta, overdose reversal kitscontaining naloxone are publicly available at some pharmacies, walk-in clinics, and emergency services.
Carfentanil is one of the most toxic opioids currently known, with studies showing it to be 10,000 times morepotent than morphine, 4,000 times more potent than heroin, and 100 times more potent than fentanyl. Inhumans, a dose as small as 1 microgram is enough to elicit a response to the drug, and about 20 micrograms,which is less than a grain of salt, is enough to be fatal. Like fentanyl, carfentanil can be absorbed throughaccidental inhalation of airborne powder, which makes its exposure and handling dangerous.
There are reports of drug dealers adding carfentanil to traditional drugs because it is cheaper, more potent,and easier to obtain than heroin or cocaine. It is unlikely that drug users are aware that they are receiving drugs laced with carfentanil, and maybe more likely to overdose when taking their usual dose.

Fentanyl is an opioid that is much more toxic than most other opioids. Opioids include drugs like heroin, morphine, fentanyl, methadone and codeine.

Fentanyl is usually prescribed in a patch form as a painkiller. It is around 50 to 100 times more toxic than morphine. This makes the risk of accidental overdose much higher.

There are also different illicit fentanyls being made and sold. This illicit fentanyl is often made as a powder and mixed with other drugs (like heroin, cocaine or crack). It is also being pressed into pills made to look like other prescription pills (like OxyContin, 80s or Percocet) or other pills including speed. It may be in drugs that are in powder, liquid or pill form.

When fentanyl is mixed with other opioids, alcohol, benzodiazepines, or stimulants like cocaine, it increases the risk of accidental overdose.

Illicit fentanyl is much more toxic than other pharmaceutical-grade opioids. There is no easy way to know if fentanyl is in the drugs you are using. You can’t see it, smell it or taste it. Any drug can be cut (mixed) with fentanyl. Even a very small amount can cause an overdose.

When you are getting drugs from anywhere other than a pharmacy or medical professional, like from a friend, ordering online, or a dealer, there is no way to be sure exactly what is in them or how toxic they may be.

It’s important to know that drugs other than fentanyl can also cause an overdose! 

Carfentanil is an opioid that is used by veterinarians for very large animals like elephants. It is not for human use. It is approximately 100 times more toxic than fentanyl and 10,000 times more toxic than morphine. This means carfentanil can be deadly in extremely small amounts.

Carfentanil is being mixed in to other illicit drugs like heroin and counterfeit pills made to look like prescription opioids (including green pills stamped ‘CDN’ on one side and ’80’ on the other). There is no easy way to know if carfentanil is in the drugs you are using. You can’t see it, smell it or taste it. It is extremely toxic and a very small amount can cause an overdose or even death.


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Additional information


1000g, 100g, 10g, 250g, 500g, 50g


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