Is Robaxin (Methocarbamol) A Controlled Substance?

Robaxin is a prescription medication used to treat muscle pain and spasms. The drug contains methocarbamol, a muscle relaxant that helps ease discomfort from injuries like sprains, strains, and fractures. Doctors typically prescribe Robaxin for short-term use while the body heals from an injury.

Many people wonder whether Robaxin is a controlled substance since it requires a prescription. The government classifies drugs as controlled substances based on their potential for abuse and whether they produce euphoric effects. Unlike opioid painkillers or benzodiazepines, Robaxin is not classified as a controlled substance. Research shows it has a low potential for abuse because it doesn’t create a “high” or feelings of euphoria.

Why Robaxin Is Not A Controlled Substance

Robaxin is not currently scheduled as a controlled substance by the Drug Enforcement Administration (DEA). This classification is based on scientific evidence showing that methocarbamol has minimal abuse potential compared to other prescription medications. The drug doesn’t produce the euphoric or pleasurable effects that people typically seek when misusing medications. It doesn’t create feelings of being high, extreme relaxation, or altered mental states that make other drugs appealing for recreational use.

Because Robaxin lacks these rewarding effects, people are far less likely to take more than prescribed or use it for non-medical reasons. The medication simply relaxes muscles without affecting the brain’s reward centers the way addictive substances do.

Low Potential For Misuse

One of the hallmarks of controlled substances is their potential to be misused. Robaxin has a very low rate of abuse and thus does not warrant being a controlled substance.

Does Not Produce A Sense Of Euphoria

Medications and other drugs that are highly addictive typically create a sense of physical and psychological euphoria. Robaxin does not produce euphoric effects when ingested on its own, but can cause drowsiness and slowed reaction time.

What Class Of Medication Is Robaxin?

Robaxin is a central nervous system depressant (CNS) and skeletal muscle relaxant. Medications in this drug class are typically prescribed for medical conditions such as muscle pain and lower back pain. CNS depressants come in two categories including spastics and antispastics. Robaxin is considered antispastic due to how it directly affects the spinal cord and the transmission of neurons in the brain.

How Robaxin Works In The Body

Muscle relaxers such as Robaxin work by decreasing the pain messages in the body, as well as slowing down the central nervous system. When pain signals are diminished and the nervous system is slowed, the muscles in the body will relax, providing pain relief.

Adverse Effects Of Robaxin Drug Misuse

Robaxin comes in doses of 500 mg and 750 mg. When taken as directed, common side effects such as extreme drowsiness, slowed reaction time, lightheadedness, and blurred vision may occur. People who take more than the recommended dose or combine Robaxin with alcohol or other prescription drugs may experience serious side effects or overdose.

Serious side effects may include:

• hives
• face swelling
• difficulty breathing
• slowed heart rate
• loss of memory
• confusion
• seizures

Symptoms of Robaxin abuse may include headaches, low blood pressure, nausea, stomach pain, and loss of consciousness.

Does Robaxin Contain Opioids?

While methocarbamol tablets do not contain opiate compounds, the drug does produce similar side effects such as drowsiness and dizziness, which can be mistaken as a “high”. Robaxin is used as a medication in the treatment of opioid withdrawal to help treat symptoms such as muscle spasms and cramps.

Is Robaxin Dangerous?

Serious reactions and side effects may occur from taking Robaxin in the event that you’re allergic to the drug, take too much of it, or combine it with other medications.

Potentially harmful drug combinations include:

• fentanyl
• oxycodone
• methadone
• cyclobenzaprine
• lorazepam
• meprobamate
• diazepam
• alprazolam
• tramadol
• methamphetamine
• Tylenol (acetaminophen) with codeine
• hydrocodone
• over-the-counter ibuprofen
• barbiturates
• other benzodiazepines

To avoid harmful drug interactions, tell your healthcare provider about all the supplements and drugs you’re using while on Robaxin.

Can You Become Dependent On Robaxin?

While Robaxin has a low potential for abuse, physical dependence can still develop with prolonged or heavy use. Because the drug slows down the central nervous system, the body can adapt to its presence over time. Stopping suddenly after extended use may cause withdrawal-like symptoms as the nervous system readjusts.

Dependence is more likely in people who take higher doses than prescribed, use it longer than recommended, or combine it with alcohol or other CNS depressants. Robaxin is designed for short-term use, and taking it longer than the prescribed duration without medical guidance increases this risk. Anyone who suspects they’ve developed a dependence should talk to their doctor rather than stopping suddenly.

Written by the Addiction Resource Editorial Staff