Robaxin

Discomfort, Lockjaw, Chronic Pain + 9 more

Treatment

8 FDA approvals

20 Active Studies for Robaxin

What is Robaxin

Methocarbamol

The Generic name of this drug

Treatment Summary

Methocarbamol is a medication used to treat muscle spasticity and the associated pain. It is available in both tablets and intramuscular injections and is used to provide relief from aches and pains caused by muscle and joint conditions. In the United States, methocarbamol is only available by prescription, while in Canada it can be purchased over-the-counter in a lower dose. In Canada, it can also be combined with acetaminophen or ibuprofen, or with acetylsalicylic acid and codeine with a prescription. Methocarbamol was approved by the FDA in 1957

Robaxin

is the brand name

image of different drug pills on a surface

Robaxin Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Robaxin

Methocarbamol

1959

395

Approved as Treatment by the FDA

Methocarbamol, commonly known as Robaxin, is approved by the FDA for 8 uses including Musculoskeletal Disorders and Muscle Spasms .

Musculoskeletal Disorders

Muscle Spasms

Used to treat Muscle Spasms in combination with Acetaminophen

Pain

Used to treat moderate to severe pain in combination with Acetaminophen

Discomfort

Tetanus

Spasm

Used to treat Muscle Spasms in combination with Acetaminophen

Musculoskeletal Diseases

Lockjaw

Effectiveness

How Robaxin Affects Patients

Methacarbamol is a drug used to relax tense muscles, though how it works is not yet known. It has been shown to block certain nerve signals, reduce nerve transmission in the spine and brain, and lengthen the amount of time between muscle contractions. It does not act as a numbing agent when injected. In animal studies, it has also been seen to prevent seizures after electric shock.

How Robaxin works in the body

Methocarbamol works by blocking the nerve signals that cause muscles to contract, which helps to reduce pain and muscle spasms. It also helps to prolong the amount of time it takes for a muscle to reach its refractory period, meaning that it takes longer for the muscles to become overworked. Methocarbamol does not directly affect muscle fibers, motor end plates, or nerve fibers.

When to interrupt dosage

The measure of Robaxin is dependent upon the designated affliction, including Physical Therapy, Gouty Arthritis and Muscle Spasms. The magnitude of dosage fluctuates based on the mode of application (e.g. Tablet - Oral or Tablet) featured in the chart beneath.

Condition

Dosage

Administration

Physical Therapy

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Lockjaw

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Discomfort

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Chronic Pain

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Muscle Pain

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Rheumatism

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Arthritis, Gouty

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Rest

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Spasm

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Musculoskeletal Diseases

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Inflammation

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Pain

750.0 mg, , 500.0 mg, 100.0 mg/mL, 400.0 mg

Oral, Tablet - Oral, , Tablet, Injection, Injection - Intramuscular; Intravenous, Intramuscular; Intravenous, Tablet, film coated - Oral, Tablet, film coated, Injection, solution, Injection, solution - Intramuscular; Intravenous, Liquid - Intramuscular; Intravenous, Liquid, Tablet, coated, Tablet, coated - Oral, Kit, Injection - Parenteral, Parenteral, Kit - Oral

Warnings

Robaxin has a single contraindication, so it should not be consumed when experiencing any of the circumstances listed in the below table.

Robaxin Contraindications

Condition

Risk Level

Notes

Severe Hypersensitivity Reactions

Do Not Combine

Methocarbamol may interact with Pulse Frequency

There are 20 known major drug interactions with Robaxin.

Common Robaxin Drug Interactions

Drug Name

Risk Level

Description

Azelastine

Major

Methocarbamol may increase the central nervous system depressant (CNS depressant) activities of Azelastine.

Ethanol

Major

Methocarbamol may increase the central nervous system depressant (CNS depressant) activities of Ethanol.

Oliceridine

Major

The risk or severity of hypotension, sedation, death, somnolence, and respiratory depression can be increased when Methocarbamol is combined with Oliceridine.

Thalidomide

Major

Methocarbamol may increase the central nervous system depressant (CNS depressant) activities of Thalidomide.

Daridorexant

Minor

The risk or severity of CNS depression can be increased when Methocarbamol is combined with Daridorexant.

Robaxin Toxicity & Overdose Risk

Taking too much methocarbamol can cause nausea, drowsiness, blurred vision, low blood pressure, seizures, and even coma. Medical treatment for overdose typically involves maintaining airway, monitoring vital signs, and giving fluids. The toxic dose for rats is 3576.2mg/kg. Pregnant women and breastfeeding mothers should exercise caution when taking this medication as it has not been studied for risks to fetuses or infants. There have also been no studies on the effects of methocarbamol on fertility, cancer, or mutation.

image of a doctor in a lab doing drug, clinical research

Robaxin Novel Uses: Which Conditions Have a Clinical Trial Featuring Robaxin?

356 active studies are currently assessing the potential of Robaxin to provide relief from Gouty Arthritis, Rest and Musculoskeletal Diseases.

Condition

Clinical Trials

Trial Phases

Physical Therapy

6 Actively Recruiting

Not Applicable

Musculoskeletal Diseases

2 Actively Recruiting

Not Applicable, Phase 2, Phase 3

Chronic Pain

130 Actively Recruiting

Not Applicable, Phase 4, Phase 2, Phase 3, Early Phase 1, Phase 1

Inflammation

0 Actively Recruiting

Lockjaw

0 Actively Recruiting

Rheumatism

0 Actively Recruiting

Rest

0 Actively Recruiting

Spasm

0 Actively Recruiting

Discomfort

0 Actively Recruiting

Arthritis, Gouty

0 Actively Recruiting

Pain

0 Actively Recruiting

Muscle Pain

3 Actively Recruiting

Phase 4, Not Applicable, Phase 2

Robaxin Reviews: What are patients saying about Robaxin?

5

Patient Review

12/4/2015

Robaxin for Muscle Spasm

This medication has been an absolute godsend. I had been in pain for four months with no end in sight, but after just a week of taking Robaxin I'm finally feeling better.

5

Patient Review

4/2/2018

Robaxin for Muscle Spasm

This drug has been a life-saver for me. I had an allergic reaction to esi, several disc problems, etc.

4.3

Patient Review

1/7/2015

Robaxin for Muscle Spasm

I've been managing my MS for half a century now and I'm still relatively mobile. I was previously taking 1/2 Vicodin three times daily, but when I started taking low doses of Robaxin twice per day, it stopped my muscle cramps and spasms almost immediately. I felt so good that I forgot to take my Vicodin!

2.7

Patient Review

11/2/2014

Robaxin for Muscle Spasm

I have scoliosis and DDD along with other chronic pain conditions. I had taken Flexeril in the past and it seemed to work a little and it did not make me extremely drowsy. Well I changed doctors due to moving and my new doctor insisted this medication would work better and not make me drowsy. Unfortunately, the complete opposite happened..I now feel like a zombie plus the spasms are still occurring. Not happy!

2.3

Patient Review

11/16/2014

Robaxin for Muscle Spasm

I'm taking the 750 mg dosage three times a day to address muscle spasms caused by Fibromyalgia, Spinal Stenosis, and spinal arthritis. However, I'm finding that I'm quite sedated after taking this medication and have also experienced stomach upset. Overall, I'm not very pleased with this drug.

2.3

Patient Review

7/28/2016

Robaxin for Muscle Spasm

I began taking robaxin 2 years ago for muscle spasms in my neck. I'm a healthy middle-aged male. I was told to take it with ibuprofen. No help at all. I definitely would not recommend this muscle relaxer.

2.3

Patient Review

10/27/2015

Robaxin for Muscle Spasm

I unfortunately had to discontinue use of this medication due to the fact that it caused my vision to become blurry. This made it impossible for me to function normally.

2

Patient Review

3/17/2022

Robaxin for Muscle Spasm

I was in a car accident and dislocated my shoulder as well as damaged my c5/c6 vertebrae. I've been prescribed Robaxin for the spasms in my neck, but it does nothing compared to Carisiprodol. The latter might make you groggy, but it's worth it for the relief it provides.

2

Patient Review

4/4/2018

Robaxin for Muscle Spasm

I unfortunately didn't have any success with this medication. I still experienced muscle spasms and pain, and in addition felt very sluggish. As someone who needs to be active for my job, this was a real hindrance.

1

Patient Review

9/1/2022

Robaxin for Muscle Spasm

If you have or had anxiety / panic attacks, this will cause them to start up again. Starts the next day and first you feel a flushing. Then when in a waking state from sleeping you get the panic. I am so angry this caused it to start up again.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about robaxin

These questions and answers are submitted by anonymous patients, and have not been verified by our internal team.

Is Robaxin a painkiller?

"Methocarbamol is used to treat muscle spasms and pain. It works by helping to relax the muscles."

Answered by AI

Is Robaxin 500 mg a narcotic?

"Methocarbamol is not a narcotic, but rather a central nervous system depressant and muscle relaxant used to treat muscle spasms, tension, and pain. Its side effects, which can make it feel like a drug “high,” include drowsiness and dizziness."

Answered by AI

Is Robaxin the same as tramadol?

"Robaxin and Ultram are used to treat different kinds of pain. Robaxin is used to treat muscle pain, while Ultram is used to treat general pain. Both drugs work differently. Robaxin relaxes muscles, while Ultram reduces pain by affecting the brain."

Answered by AI

Clinical Trials for Robaxin

Image of AltaSciences, Inc in Cypress, United States.

SBS-147 Safety Study

18 - 55
All Sexes
Cypress, CA

This study is part of the HEAL Initiative supported by the NIH. The purpose of this study is to learn how safe the study drug, SBS-147, is and how people's bodies respond to and process it. Researchers will also look for any side effects that may occur when taking SBS-147. Some participants will receive SBS-147, and others will receive a placebo, which looks the same but does not contain any medicine. This helps researchers fairly compare results. The study includes two parts: Single-Dose Group, where Participants receive SBS-147 or placebo one time. Multiple-Dose Group, where Participants receive SBS-147 or placebo once or twice daily for 7 days.

Phase 1
Waitlist Available

AltaSciences, Inc

Jeff Reich, MD

Sparian Biosciences, Inc

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Image of Vanderbilt University Medical Center in Nashville, United States.

Lidocaine Infusions for Postoperative Pain

18+
All Sexes
Nashville, TN

The goal of this single-center, pragmatic, randomized, blinded, placebo-controlled trial is to evaluate the impact of intravenous (IV) lidocaine within the existing Enhanced Recovery After Surgery (ERAS)program on outcomes in patients after major abdominal surgery. The main questions the trial aims to answer are: The primary hypothesis is that utilization of IV lidocaine as part of a perioperative multimodal pain regimen will result in a reduction in hospital Case Mix Index-Adjusted Resource Length of Stay (CARLOS). The secondary hypotheses are that lidocaine infusion will result in a reduction in total inpatient opioid consumption (oral morphine milligram equivalents, oMMEs) and pain scores, and improved surgical outcomes (including return of bowel function, ileus, nausea, rapid responses called, surgical site infections, and ICU transfers), while also having minimal incidence of side effects (including double/blurry vision, tinnitus, sedation, and adverse events requiring early cessation).

Phase 4
Waitlist Available

Vanderbilt University Medical Center

Danial Shams, MD

Image of Baylor College of Medicine/Texas Children's Hospital in Austin, United States.

Guided Imagery Therapy for Abdominal Pain

7 - 12
All Sexes
Austin, TX

Chronic abdominal pain is common among children, and the majority of cases are attributed to functional abdominal pain disorders. One approach to treating these disorders is by using psychological therapies. This clinical trial aims to see how well pre-recorded guided imagery therapy sessions help children's abdominal pain when delivered via a mobile application (app) on a smartphone or tablet. Participants will complete a baseline abdominal pain and stooling diary to determine eligibility, as well as other surveys. Eligible participants will be given access to the guided imagery therapy mobile application. This intervention asks participants to listen to a 10- to 15-minute GIT session 5 out of 7 days per week for 8 weeks, in addition to their usual care for their abdominal pain. Then, participants will complete another abdominal pain and stooling diary, along with other psychometric surveys, at the end of this intervention period. Participants will also collect another diary and surveys 3 months post-treatment.

Waitlist Available
Has No Placebo

Baylor College of Medicine/Texas Children's Hospital (+1 Sites)

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