M367 Pill: Hydrocodone Identification, Effects, Overdose and Treatment

M367 is the imprint on a white, capsule-shaped prescription tablet containing 10 mg of hydrocodone bitartrate and 325 mg of acetaminophen. Hydrocodone relieves pain through opioid receptors, acetaminophen adds non-opioid analgesia, and both ingredients create distinct safety risks when the tablet is misused.

The imprint identifies a labeled product, not the contents of an unknown street pill. A tablet obtained outside a licensed pharmacy requires particular caution because counterfeit pills reproduce legitimate markings and contain unpredictable ingredients.

What Is an M367 Pill?

M367 is a product imprint for hydrocodone bitartrate and acetaminophen 10 mg/325 mg. DailyMed lists the product as a Schedule II prescription drug. Vicodin and Norco are brand names for hydrocodone-acetaminophen products, while M367 identifies a specific generic tablet rather than a brand.

What Does an M367 Pill Look Like?

M367 pills are white with an oval shape that has "M367" imprinted on them, with an imprinted line on the back of the pill in the middle. The container should say the pills have 10 mg of hydrocodone bitartrate and 325 mg of acetaminophen.

How Does M367 Differ From M366, M365 and M357 Pills?

M367, M366 and M365 are the same Mallinckrodt hydrocodone-acetaminophen tablet at three different opioid strengths: 10 mg, 7.5 mg and 5 mg of hydrocodone bitartrate respectively, each combined with 325 mg of acetaminophen. All 3 are white, oblong, Schedule II tablets, and the imprint is the only reliable way to tell them apart by sight.

The following table defines each imprint in the Mallinckrodt hydrocodone series by its hydrocodone and acetaminophen content.

• M365: hydrocodone 5 mg with acetaminophen 325 mg.
• M366: hydrocodone 7.5 mg with acetaminophen 325 mg.
• M367: hydrocodone 10 mg with acetaminophen 325 mg, the strongest of the three.

Two other strings surface constantly in imprint searches and neither identifies a current product. N367 is a misreading of M367, since Mallinckrodt does not press an N-prefixed hydrocodone tablet. M357 belongs to the discontinued generation of hydrocodone tablets built on 500 mg of acetaminophen. The Food and Drug Administration asked manufacturers in January 2011 to cap acetaminophen at 325 mg per dosage unit because of severe liver injury, and formally withdrew the applications for every prescription combination product exceeding that limit in 2014. A tablet carrying one of those older imprints is therefore either expired stock or a counterfeit press.

Imprint confusion carries a specific consequence for anyone buying tablets outside a pharmacy. Counterfeit presses reproduce legitimate markings, and the FDA warns that falsified medicines can contain the wrong ingredient, too much or too little active ingredient, no active ingredient, or another harmful substance. Visual inspection therefore cannot authenticate an M367 tablet.

Correct identification matters because the two active ingredients in a genuine M367 tablet carry separate risks, which the next section sets out.

What Are the Uses for M367 Pills?

M367 pills are primarily used for managing moderate to severe pain. This medication combines hydrocodone, an opioid pain reliever, with acetaminophen, a non-opioid pain reliever, to enhance pain control. Hydrocodone, an opioid analgesic, primarily targets pain, offering a reprieve from the relentless discomfort that can stem from injuries, surgeries, or chronic conditions. Its partner, acetaminophen, is a household name, often recognized for its fever-reducing properties and its ability to alleviate mild to moderate pain. Together, they form a synergistic duo in M367, providing comprehensive pain management. Beyond pain relief, hydrocodone also possesses antitussive properties, making it effective in suppressing persistent coughs.

The effectiveness of M367 in treating pain makes it suitable for various conditions where pain relief is a priority. This can include post-surgical pain, injury-related pain, or pain from conditions like arthritis or chronic back pain. However, due to its opioid content, M367 is typically prescribed when other pain relievers, such as non-opioid pain medications, have not been effective or are not suitable.

Why Is M367 Dangerous and Addictive When Misused?

M367 misuse combines opioid overdose risk with acetaminophen-related liver injury. Hydrocodone produces tolerance, physical dependence, respiratory depression, and opioid use disorder; acetaminophen is the active ingredient in Tylenol, not Advil, and excessive total daily exposure damages the liver. Taking additional acetaminophen products at the same time raises that cumulative dose.

As the opioid crisis continues to affect communities across the nation, it's crucial for individuals, families, and healthcare providers to be informed about medications like M367. Being knowledgeable not only helps in ensuring the drug is used safely but also in recognizing signs of misuse, which can be the first step in preventing addiction.

How Is M367 Misused?

Some individuals might crush the pills to produce a powder, which can then be snorted or injected. This method of administration can lead to a rapid release of the drug into the system, increasing the risk of overdose and other adverse effects.

Misuse can also occur when individuals take the medication in higher doses than prescribed, take it more frequently, or use it for reasons other than its intended purpose. Such behaviors can increase the risk of developing a dependence on the drug, leading to addiction.

What Are the Side Effects of M367?

Common side effects include dizziness, drowsiness, constipation, nausea, and vomiting. While these are typically manageable and may even dissipate with continued use, it's essential to communicate any discomfort to a healthcare provider. More severe side effects, though rarer, can include slowed breathing, difficulty waking up, severe abdominal pain, or signs of liver damage such as yellowing eyes or skin. It's also worth noting the difference between physical dependence—a natural physiological response to prolonged use—and addiction, which involves compulsive use of the drug despite harmful consequences.

Prolonged misuse or dependence on M367 can usher in a host of long-term health challenges. Respiratory issues, stemming from the opioid's potential to depress breathing, can become chronic. The immune system might also become compromised, making individuals more susceptible to infections. Gastrointestinal problems, particularly chronic constipation, can lead to additional complications like bowel obstructions. Furthermore, the risk of liver damage due to acetaminophen's cumulative effects cannot be understated. Beyond the physical, there's the psychological toll. Dependence can evolve into addiction, affecting mental well-being, relationships, employment, and overall quality of life.

What Are the Alternatives to M367 for Pain Management?

There are alternatives to M367 for pain management, including other opioid/non-opioid combinations, non-steroidal anti-inflammatory drugs (NSAIDs), and non-pharmacological therapies. The choice depends on the individual's specific pain condition and medical history.

How Does the DEA Classify M367?

M367 is a Schedule II controlled substance because it contains hydrocodone. The DEA moved hydrocodone combination products from Schedule III to Schedule II in October 2014. Schedule II prescriptions carry stricter controls and cannot be refilled under federal law.

What Are the Signs of a Potentially Fatal M367 Overdose?

Symptoms can vary based on the amount taken and the individual's physiology, but common indicators include shallow or slowed breathing, pinpoint pupils, confusion, dizziness, and extreme drowsiness. In severe cases, one might experience blue-tinted lips or fingernails, cold and clammy skin, or even lose consciousness. The acetaminophen component can also lead to symptoms like nausea, vomiting, loss of appetite, confusion, unusual tiredness, and yellowing of the skin or eyes (jaundice). If any of these signs are observed, it's imperative to seek emergency medical attention immediately.

How Can You Identify a Counterfeit M367 Pill?

Genuine M367 pills have a distinct appearance: they are white, oval-shaped, and have "M367" debossed on one side. However, visual inspections alone might not be foolproof, as counterfeiters have become adept at mimicking these details. To safeguard against counterfeits:

• Always source your medications from reputable pharmacies.
• Be wary of pills that have variations in color, size, or markings.
• Avoid purchasing medications from unverified online sources or from individuals.
• If the medication's effects feel stronger or different than expected, seek medical advice immediately.

Why Are Counterfeit M367 Pills Associated With Fentanyl?

The opioid crisis has been further exacerbated by the introduction of fentanyl, a synthetic opioid that's 50 to 100 times more potent than morphine, which is commonly disguised as opiate pills like M367. There have been alarming instances where M367 pills, and other medications, have been found laced with fentanyl. These counterfeit pills can be almost indistinguishable from genuine ones, making them particularly dangerous. Even a small amount of fentanyl can lead to a fatal overdose, especially for someone who is unaware they're ingesting it.

What Should You Do During a Suspected Opioid Overdose?

An overdose on M367, or any opioid-based medication, is a medical emergency. Recognizing the signs and acting swiftly can save lives. If someone is suspected of overdosing on M367:

• Call 911 immediately.
• The over-the-counter NARCAN label has a bystander give a dose for a suspected overdose, using one nasal spray device in either nostril.
• The same label puts the 911 call immediately after that first dose, and it has the bystander continue giving doses every 2 to 3 minutes until the person wakes up.
• SAMHSA's Overdose Prevention and Response Toolkit states that breathing is more important than waking up, and it directs a responder to attend to the person's breathing and cardiovascular needs by performing rescue breathing, chest compressions, or both.
• The same toolkit puts a person in the recovery position on their side once breathing has returned but they are still not fully awake.
• The label has the bystander stay until the ambulance arrives even if the person wakes up, and give another dose if the person becomes very sleepy again.

Valley Spring emphasizes the importance of having naloxone on hand if someone in the household is using opioids, and we offer training and resources on its proper use.

When Does M367 Use Require Addiction Treatment?

M367 use requires an opioid-use-disorder assessment when a person takes more than prescribed, cannot reduce use, experiences craving or withdrawal, continues despite harm, or obtains pills outside medical care. Treatment addresses opioid dependence, overdose prevention, pain-management needs, mental health, and the functional consequences of use.

How Does M367 Affect the Body?

When a patient takes M367, hydrocodone bitartrate interacts with the opioid receptors located in the brain, spinal cord, and other parts of the central nervous system. By binding to these receptors, it effectively alters the way the body perceives pain, providing relief. On the other hand, acetaminophen works more subtly, acting on the brain to reduce the production of prostaglandins, chemicals that signal pain and induce fever. While both components of M367 work in tandem to alleviate pain, it's essential to understand their individual mechanisms to appreciate the comprehensive relief they offer and to be aware of potential side effects.

Does M367 Cause Opioid Withdrawal?

Yes, M367 can cause withdrawal symptoms if used for a long time and then suddenly stopped. Symptoms can include restlessness, watering eyes, runny nose, nausea, sweating, and muscle aches. Gradual tapering under medical supervision is recommended.

How Does M367 Differ From Hydrocodone Alone?

M367 contains a specific dosage of hydrocodone combined with acetaminophen. This combination is designed to provide more effective pain relief than hydrocodone alone. The presence of acetaminophen helps to enhance the pain-relieving effects of hydrocodone.

Is M367 the Same as Vicodin?

M367 is similar to Vicodin, as both contain hydrocodone and acetaminophen. However, they may differ in the concentration of these components. Vicodin is a brand name opioid, while M367 is identified by its pill imprint.

How Is M367 Dependence Treated?

Treatment begins with an assessment of current dose, source, co-exposures, overdose history, withdrawal, pain, mental health, and daily functioning. Medically supervised withdrawal management addresses short-term stabilization when indicated; ongoing opioid use disorder treatment should also evaluate buprenorphine, methadone, or naltrexone rather than relying on withdrawal alone. Behavioral and recovery services include:

• Individual counseling to address the psychological aspects of addiction.
• Group therapy sessions to foster community support and shared healing.
• Behavioral therapies to equip individuals with coping strategies and relapse prevention skills.
• Holistic treatments, such as meditation and yoga, to promote overall well-being.

Where Is Hydrocodone Addiction Treated?

Emergency departments treat overdose, medical withdrawal providers manage unstable withdrawal, and licensed addiction programs provide continuing care. Valley Spring Recovery Center provides outpatient opioid addiction treatment in Northern New Jersey after a person is medically stable.