Many parents have heard about fentanyl. But fewer know that new synthetic opioids are already taking its place in the illegal drug supply. One fast-growing group is called orphine analogues, or simply “orphines.”

These drugs are extremely strong, hard to detect, and linked to a rising number of fatal overdoses across the United States and Canada.

What Are Orphines?

Orphines are a group of strong opioids that were first created in a drug research lab in Belgium in the 1960s. Scientists were looking for powerful pain-relieving and anesthesia drugs for medical use.

One of the drugs they made was called bezitramide. It was tested on people during the 1970s and 1980s and was used in parts of Europe to treat severe, long-lasting pain. Over time, however, it became clear that this drug was very dangerous. After several overdoses in the Netherlands, it was taken off the market in 2004.^[1]

Today, illegal versions of similar drugs — now called orphines — have started showing up in the street drug supply. Some of the more common ones include cychlorphine, brorphine, spirochlorphine, and chlorphine.

Not all orphines affect the body in the same way, but they can be extremely powerful. Some are chemically similar to fentanyl and nitazenes, two of the most dangerous opioids today. Others, like cychlorphine, may be 50 to 200 times stronger than heroin.

Several orphines, including brorphine and cychlorphine, have already been linked to fatal overdoses around the world.

When Did Orphines Start Showing Up?

Orphines first appeared in the recreational drug supply around 2020, when brorphine began circulating. Since then, it’s increased quickly. At least six different orphine analogues have been confirmed in recent years — and new ones continue to emerge.

A Growing Concern: N-Propionitrile Chlorphine

One of the newest and most concerning orphines is N-propionitrile chlorphine.

• It was first detected in mid-2024 by the Center for Forensic Science Research and Education (CFSRE).
• Lab studies show it is about 10 times stronger than fentanyl.
• Since mid-2025, it has been found more often in fatal overdoses.

This drug is not approved for medical use and has no known safe dose.

Why Is This Drug Spreading Now?

In July 2025, the Chinese government placed nitazene analogues (another group of powerful lab-made opioids) under tighter control. After that change, nitazines showed up less often while orphines increased in the drug supply. This constant change makes the drug supply more dangerous and unpredictable.

What the Overdose Data Shows

The data, coming from cases in nine states in the U.S. and 3 Canadian provinces, is alarming.^[2]

• 25 fatal overdoses tested at CFSRE contained N-propionitrile chlorphine.
• Most occurred in late 2025 and early 2026.
• In 11 cases, it was the only opioid found in the overdose.
• More than 100 toxicology cases at NMS Labs have also tentatively identified this drug.

This drug has been found alone as well as mixed with other opioids like fentanyl and counterfeit pain pills. It has also been mixed with stimulants like cocaine and methamphetamine. Mixing drugs including alcohol greatly increases the risk of overdose.

Why Orphines Are Especially Dangerous

• They are very strong. A small amount can stop breathing.
• People often don’t know they’re taking them. Orphines are found in fake pills and mixed into other drugs.
• They change fast. Because these drugs are new, testing often lags behind what’s on the street.
• Overdose risk is high even for experienced users. Tolerance does not protect against unknown strength.
• Naloxone may not work or may need to be given more than once. It can still save lives, but fast action is critical.^[3]

Possible signs of opioid use

• Extreme drowsiness or nodding off
• Small pupils
• Slowed speech
• Mood changes or isolation
• Missing school, work, or responsibilities

Signs of an overdose

In the event of an overdose, call 911 immediately.

• Slow or stopped breathing
• Blue or gray lips or fingernails
• Gurgling sounds
• Unresponsiveness

Use naloxone right away if available.

How to Talk to Your Child About Orphines

You don’t need to know all the chemistry. What matters most is how you start the conversation.

Try opening with curiosity instead of fear:

• “I read about some new opioids showing up in pills. Have you heard anything about that?”
• “A lot of people don’t realize how risky the drug supply is right now. What are people saying at school?”

Focus on safety, not punishment:

• “I’m not here to judge. I just want you to be safe.”
• “You deserve to know what could be in these drugs.”

Be honest:

• “Even one use can be deadly now.”
• “People overdose who never thought they were using opioids.”

Steps Parents Can Take Right Now

• Carry naloxone and teach others how to use it
• Talk early and often
• Encourage not using alone for those with loved ones who are at risk of overdose
• Support mental health
• Stay informed — the drug supply is changing fast

A Final Message for Parents

The rise of orphines like N-propionitrile chlorphine shows how quickly the drug landscape can change. These substances are stronger, newer, and more unpredictable than ever before.

But parents still matter. Staying informed, connected, and focused on safety can save lives.