M367 White Oval Pill and M366 : Hydrocodone & Acetaminophen Tablet

m366 m367 white pill

Last Updated on March 27, 2024 by REVIVE Recovery and Detox Services

They’re little, white, oblong pills. It’s the M366 and M367 White Oval Pill and if you find these but don’t have a prescription for them, you should be suspicious.

These little tablets have been the ruin of many, and the beginning of the end for others.

If you’ve stumbled across these pills and want to know more about them, below we describe what they are and how they can be dangerous and cause problems for the person illegally using them.

What are M366 and M367 White Oval Pills?

Tablets with this imprint are semi-synthetic opioid painkillers mixed with hydrocodone and acetaminophen, the active ingredient in Tylenol.

Specifically, an oblong pill with M366 stamped on it contains 7.5mg of the opioid hydrocodone and 325mg of acetaminophen while one with the imprint M367 has 10 mg of hydrocodone and 325mg of acetaminophen and contains an even higher opioid dose.

They’re commonly prescribed in the aftermath of injuries and medical procedures.

Hydrocodone bitartrate is an opioid that is considered a “weak” painkiller by many standards, but its misuse and abuse can still have devastating consequences and lead to seeking similar drugs that are more potent.

They’re commonly sold on the street under a variety of name brands despite this imprint being the generic version of the tablet form.

You might have heard them referred to as Vicodin, Norcos, or Lortabs depending on what terminology the person was familiar with.

m366 m367 pill

M366 and M367 White Oval Pill Uses

Opioids are controlled substances and prescription medications indicated for the use of pain management.

Whether or not a person receives a script for them after a procedure is largely dependent on the doctor’s assessment.

Prescription cough syrups containing a similar mixture of acetaminophen and hydrocodone are sometimes prescribed as well and have the same potential for abuse or misuse.

These work by suppressing breathing, and the calming effect can also relieve severe coughing symptoms and provide relief.

The most common problem stems from the fact that hydrocodone can produce euphoria, sedation, and relieve anxiety in patients.

The heavy abuse potential of opiates and their derivatives has been known through much of human history, beginning with crude opium extracts from poppies.

Diverted medication is frequently used for recreational purposes on the streets. Unfortunately for the users, it’s not just a harmless bit of fun because it can lead to increased use and very quickly form a dependence.

Side Effects of M367 White Oval Pill

All opioids are capable of forming both a physical and mental dependence.

For someone who’s trying to quit, both of these can result in serious issues. The mental dependence keeps a person’s mind chained to the drug.

The physical symptoms of withdrawal make it even harder on a person who has become dependent on them and trying to quit. Withdrawal symptoms from this class of drug can result in the following:

  • Nausea
  • Diarrhea
  • Constipation
  • Anxiety
  • Depression
  • Aching bones and joints
  • Liver Damage

The withdrawal symptoms from opioids are sometimes described as being similar to a serious case of the flu.

With no other complications, opioid withdrawal isn’t actually life threatening. But the uncomfortable nature of the symptoms often brings people back to the drug time and time again just to feel normal and escape the extremely uncomfortable side effects of trying to quit using the drug.

Long-Term Effects of the M367 White Oval Pill

On its own, hydrocodone can cause respiratory and cardiovascular depression that may result in death if too much is taken.

That’s bad enough news for most people.

The hidden part of the issue results from the fact that people often “graduate” to other opioids as their tolerance goes up.

The availability of cheap heroin is particularly tempting for those who are getting sick when their supply runs out.

More than one person has gone from taking a couple of hydrocodone tablets on Friday nights to using a needle to inject heroin and feel the effects more quickly and intensely.

Adding to this already danger experience, fentanyl is commonly added to heroin these days by dealers who are trying to “boost” the strength of their supply or fluff it up so they have more product.

This can result in an unpredictable strength that puts the user at further risk of an overdose.

In recent years, according to the CDC, fentanyl has been added to heroin, opioids, cocaine, meth, and even Xanax to create a more intense high than all of these drugs in their natural state.

Fentanyl added to these drugs is one of the leading reasons the overdose rate has increased in the midst of the heroin and opioid epidemic.

The risk is much the same as with any other opioid, even those that are naturally considered stronger.

Physical addiction, mental dependence, and an overall downward spiral will inevitably result from becoming addicted to opioids and eventually heroin.

Prescription drug abuse has rapidly become the new “gateway drug” for adolescents as well, especially from drugs like M366 or M367 supplied in tablet form.

After all, they’re discrete, easy to find, and make people feel good. The only downside is that they’re also often the first stepping stone on a path to crippling addiction.

m367 white oval pill

Hydrocodone Abuse

Opioid use can often be more difficult to recognize than many of the other common drugs of abuse.

There’s no smell, tablets are small enough to be easily hidden, and the effects on the user sometimes aren’t apparent until they’ve passed a high threshold of intoxication or use and effects have culminated over a long period of time.

The effects of hydrocodone, which are apparent to those around them on a daily basis, can be subtle but will usually give some good clues as to what may be going on such as some of the following:

  • Constricted pupils
  • Slowed speech and movements
  • Frequent illness that resolves quickly

However, these pills are frequently prescribed by doctors and dentists for managing pain after surgery or other medical procedures, so caution should be taken before calling someone out if you’re not 100% certain.

Someone who is sensitive to the medication, for instance, may display the same symptoms as someone who is abusing them to get high.

If you’re trying to find out if a friend or loved one taking them in a way they were not prescribed, it’s important to look at their behavior.

Common and easily noticeable symptoms of addiction sometimes include:

  • Hidden pills
  • Tablets in unconventional containers
  • Evasive behavior
  • Large changes in general mannerisms

If any of the above signs are showing up in the behavior of a loved one, it might be a reason to suspect the person could be on their way to forming a habit.

If the above signs are accompanied by more serious ones, like losing a job and stealing money to fuel their supply, they might be on track for something more serious like an addiction problem.

If it progresses to that stage and goes unchecked, the person will need treatment to avoid moving on to more potent drugs like heroin.

It’s important to act quickly but not too hastily when you or someone close to you is on a path toward addiction. This is the time to speak up and find out what is really happening.

M367 Treatment

There are plenty of solutions available when seeking outside help for the possibility of addiction. Finding or misusing the M366 white pill or M367 white oval pill doesn’t mean you or a person you know is doomed to become addicted. But there might be cause for alarm if the use escalates and continues for a long period of time.

Tolerance to these types of drugs increases quickly and more of the drug will be needed just to feel the effects they produce as well as keep withdrawal symptoms at bay.

For many addicts, addiction isn’t the end of the road. It’s just a big speed bump on the highway of life. If an underlying condition is fueling the addiction dual diagnosis treatment centers are available for help.

Are there fake m367 White Oval Pills?

Yes, there are fake M367 white oval pills circulating in the market.

M367 is the imprint on a popular prescription pain medication known as hydrocodone-acetaminophen.

The counterfeit pills often look very similar to the genuine medication, making it difficult for consumers to distinguish between the real and fake ones.

These fake pills are often sold on the street or on the internet, posing a serious health risk to individuals seeking pain relief.

Fake M367 pills may contain dangerous substances such as fentanyl, which can lead to overdose and death.

It’s important for individuals to obtain their medication from a reputable pharmacy with a valid prescription to ensure they are receiving the genuine M367 medication.

Additionally, being aware of the potential signs of counterfeit pills, such as unusually low prices or suspicious packaging, can help consumers avoid purchasing fake medication and protect their health.

Does the M367 White Oval Pill Make You Feel High?

M367 is a combination medication containing hydrocodone and acetaminophen.

Hydrocodone is an opioid pain medication, while acetaminophen is a non-opioid pain reliever and fever reducer.

When taken as prescribed, the M367 white oval should not make you feel high. However, hydrocodone can cause feelings of euphoria, relaxation, and sedation, especially when it is taken in high doses or in ways not recommended by a doctor.

This is why M367 should only be used as directed by a healthcare professional.

If someone takes M367 in higher doses than prescribed or takes it without a prescription, they may experience a high feeling.

It’s important to use this medication exactly as prescribed and to be aware of the potential for abuse and addiction.

If you have concerns about the effects of M367, it’s important to discuss them with your healthcare provider.

Can the M367 White Oval Pill Cause Withdrawal Symptoms?

Yes, the M367white oval pill can cause withdrawal symptoms if used for a prolonged period and then suddenly stopped.

M367 is the imprint on a combination tablet containing 10 mg of hydrocodone and 325 mg of acetaminophen, which is commonly used to relieve moderate to severe pain.

Hydrocodone also can lead to physical dependence if used regularly.

When a person becomes dependent on M367 and stops taking it abruptly, they may experience withdrawal symptoms such as muscle aches, nausea, vomiting, diarrhea, insomnia, anxiety, and agitation.

These symptoms can be quite uncomfortable and can make it difficult for the person to stop using the medication.

It is important for individuals who are prescribed M367 to follow their doctor’s instructions carefully and to gradually taper off the medication when it is time to stop using it in order to minimize the risk of experiencing withdrawal symptoms.

Seeking medical assistance to manage withdrawal from M367 is advised.


Q: What is the M366 and M367 white oval pill?

A: The M366 and M367 white oval pills are hydrocodone and acetaminophen tablets commonly used to treat pain.

Q: What are the risks associated with taking M366 and M367 White Oval pills?

A: Risks of taking M366 and M367 pills include overdose, potential addiction, and side effects like respiratory depression.

Q: What is the recommended dosage of M366 and M367 pills?

A: The dosage of M366 and M367 pills should be determined by a healthcare professional based on individual needs and medical history.

Q: What are the long-term side effects of using M367 pills?

A: Long-term side effects of using M367 pills may include addiction, tolerance, and dependence on the medication.

Q: Are there any dangers of overdose when taking hydrocodone and acetaminophen pills like M367?

A: Yes, there is a risk of overdose when taking hydrocodone and acetaminophen pills like M367, which can be life-threatening.

Q: How can one identify counterfeit M367 White Oval pills?

A: Identifying counterfeit M367 white oval pills can be challenging, but it’s important to purchase medication from reputable sources to avoid counterfeit products.

Q: What should be done in case of a suspected hydrocodone overdose?

A: In case of a suspected hydrocodone overdose, seek immediate medical attention or contact a regional poison control center.

Q: What are the potential side effects of hydrocodone and acetaminophen tablets?

A: The potential side effects of hydrocodone and acetaminophen tablets may include shallow breathing, dizziness, and hypersensitivity reactions.