Flexeril

Chronic Pain, Physical Therapy, Rest + 2 more

Treatment

20 Active Studies for Flexeril

What is Flexeril

Cyclobenzaprine

The Generic name of this drug

Treatment Summary

Cyclobenzaprine is a muscle relaxant that was developed in 1961 and approved for human use in 1977. It is usually prescribed as a short-term treatment to reduce muscle spasms caused by musculoskeletal injury. The drug is structurally similar to tricyclic antidepressants and has become increasingly popular as an adjunctive treatment.

Flexeril

is the brand name

image of different drug pills on a surface

Flexeril Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Flexeril

Cyclobenzaprine

1977

498

Effectiveness

How Flexeril Affects Patients

Cyclobenzaprine is a medicine that relaxes the muscles and helps reduce spasms. It does this by affecting certain areas of the brain. However, it is not completely understood how it works. Its effects usually last for 4-6 hours. Taking cyclobenzaprine with other medications that affect the brain could cause a serious reaction called serotonin syndrome. Symptoms include changes in mental status, trouble controlling the body, and stomach problems. If any of these symptoms happen, stop taking cyclobenzaprine right away.

How Flexeril works in the body

Cyclobenzaprine works on the brainstem to reduce activity in the spinal cord. This effect is believed to be caused by blocking certain pathways in the brain and spinal cord, as well as by targeting serotonin receptors. The result is decreased activity in the muscles, leading to a decrease in muscle tension and pain.

When to interrupt dosage

The quantity of Flexeril is contingent upon the diagnosed condition, including Physical Therapy, Rest and Chronic Pain. The dose additionally varies as per the administration technique outlined in the table beneath.

Condition

Dosage

Administration

Chronic Pain

, 10.0 mg, 5.0 mg, 7.5 mg, 15.0 mg, 30.0 mg, 0.1 mg, 1.0 mg/mg, 2.5 mg/mg, 5.6 mg/mg, 2.8 mg/mg

, Oral, Tablet, Tablet - Oral, Tablet, film coated, Tablet, film coated - Oral, Capsule, extended release, Capsule, extended release - Oral, Kit, Topical, Kit - Topical, Capsule, film coated, extended release, Capsule, film coated, extended release - Oral, Kit - Oral, Tablet, coated, Tablet, coated - Oral, Oral; Topical, Capsule - Oral, Capsule, Kit - Oral; Topical

Physical Therapy

, 10.0 mg, 5.0 mg, 7.5 mg, 15.0 mg, 30.0 mg, 0.1 mg, 1.0 mg/mg, 2.5 mg/mg, 5.6 mg/mg, 2.8 mg/mg

, Oral, Tablet, Tablet - Oral, Tablet, film coated, Tablet, film coated - Oral, Capsule, extended release, Capsule, extended release - Oral, Kit, Topical, Kit - Topical, Capsule, film coated, extended release, Capsule, film coated, extended release - Oral, Kit - Oral, Tablet, coated, Tablet, coated - Oral, Oral; Topical, Capsule - Oral, Capsule, Kit - Oral; Topical

Spasm

, 10.0 mg, 5.0 mg, 7.5 mg, 15.0 mg, 30.0 mg, 0.1 mg, 1.0 mg/mg, 2.5 mg/mg, 5.6 mg/mg, 2.8 mg/mg

, Oral, Tablet, Tablet - Oral, Tablet, film coated, Tablet, film coated - Oral, Capsule, extended release, Capsule, extended release - Oral, Kit, Topical, Kit - Topical, Capsule, film coated, extended release, Capsule, film coated, extended release - Oral, Kit - Oral, Tablet, coated, Tablet, coated - Oral, Oral; Topical, Capsule - Oral, Capsule, Kit - Oral; Topical

Rest

, 10.0 mg, 5.0 mg, 7.5 mg, 15.0 mg, 30.0 mg, 0.1 mg, 1.0 mg/mg, 2.5 mg/mg, 5.6 mg/mg, 2.8 mg/mg

, Oral, Tablet, Tablet - Oral, Tablet, film coated, Tablet, film coated - Oral, Capsule, extended release, Capsule, extended release - Oral, Kit, Topical, Kit - Topical, Capsule, film coated, extended release, Capsule, film coated, extended release - Oral, Kit - Oral, Tablet, coated, Tablet, coated - Oral, Oral; Topical, Capsule - Oral, Capsule, Kit - Oral; Topical

acute painful musculoskeletal conditions

, 10.0 mg, 5.0 mg, 7.5 mg, 15.0 mg, 30.0 mg, 0.1 mg, 1.0 mg/mg, 2.5 mg/mg, 5.6 mg/mg, 2.8 mg/mg

, Oral, Tablet, Tablet - Oral, Tablet, film coated, Tablet, film coated - Oral, Capsule, extended release, Capsule, extended release - Oral, Kit, Topical, Kit - Topical, Capsule, film coated, extended release, Capsule, film coated, extended release - Oral, Kit - Oral, Tablet, coated, Tablet, coated - Oral, Oral; Topical, Capsule - Oral, Capsule, Kit - Oral; Topical

Warnings

Flexeril Contraindications

Condition

Risk Level

Notes

Pulse Frequency

Do Not Combine

Heart Block

Do Not Combine

Hyperthyroidism

Do Not Combine

Atrial Fibrillation

Do Not Combine

Heart Block

Do Not Combine

Myocardial Infarction

Do Not Combine

Congestive Heart Failure

Do Not Combine

Severe Hypersensitivity Reactions

Do Not Combine

Cyclobenzaprine may interact with Pulse Frequency

There are 20 known major drug interactions with Flexeril.

Common Flexeril Drug Interactions

Drug Name

Risk Level

Description

7,8-Dichloro-1,2,3,4-tetrahydroisoquinoline

Major

Cyclobenzaprine may increase the serotonergic activities of 7,8-Dichloro-1,2,3,4-tetrahydroisoquinoline.

Azelastine

Major

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

Benmoxin

Major

Cyclobenzaprine may increase the serotonergic activities of Benmoxin.

Brofaromine

Major

Cyclobenzaprine may increase the serotonergic activities of Brofaromine.

Caroxazone

Major

Cyclobenzaprine may increase the serotonergic activities of Caroxazone.

Flexeril Toxicity & Overdose Risk

The toxic dose of cyclobenzaprine in mice and rats is 338 mg/kg and 425 mg/kg, respectively. When someone overdoses on this drug, they may feel very sleepy and have a rapid heartbeat, as well as tremors, agitation, or difficulty walking. In rare cases, a person may have a heart attack or abnormal heart rhythm, low blood pressure, seizures, or a rare condition called neuroleptic malignant syndrome. If someone has overdosed on cyclobenzaprine, it is recommended to contact a poison control center before providing treatment. Treatment often involves removing the drug from the stomach, closely monitoring the

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

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

179 active trials are being conducted to evaluate the potential of Flexeril in alleviating Muscle Spasms, Physical Therapy and Restorative Rest.

Condition

Clinical Trials

Trial Phases

Rest

0 Actively Recruiting

Spasm

0 Actively Recruiting

acute painful musculoskeletal conditions

0 Actively Recruiting

Chronic Pain

124 Actively Recruiting

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

Physical Therapy

7 Actively Recruiting

Not Applicable, Phase 2

Flexeril Reviews: What are patients saying about Flexeril?

5

Patient Review

9/28/2016

Flexeril for Disorder characterized by Stiff, Tender & Painful Muscles

This medication provides excellent relief from muscle pain when taken with other pain pills. I also find that weekly massages help immensely.

5

Patient Review

5/6/2019

Flexeril for Muscle Spasm

I used to love Flexeril for my muscle spasms, but since it's been discontinued I haven't had any luck with the generic brands. Amrix, Fexmid, and Robaxin have all let me down. It's so frustrating that in 2019 we can't do better than this when it comes to pain relief.

5

Patient Review

7/26/2022

Flexeril for Muscle Spasm

This treatment was a game-changer for me. It's helped with my neck disk issues and osteoarthritis, and now I can walk around again without pain.

5

Patient Review

10/11/2017

Flexeril for Disorder characterized by Stiff, Tender & Painful Muscles

I've been taking cyclobenzaprine 10 mg on and off since being diagnosed with fibromyalgia in 2001. First from 2001 to 07, 2nd from 2008 to 10 and 3rd from 2014 to present. It has helped my whole body relax and eased the pain and allowed me to sleep better. I used to find it difficult to wake up in the morning, but that's better now. When I stopped the med, things got worse with pain and stiffness, so I find it helps me.

4.3

Patient Review

7/24/2018

Flexeril for Muscle Spasm

I find that this medication is most effective when taken at night. It doesn't work as well in cold weather, but for the most part it does alleviate my muscle cramps.

4

Patient Review

1/11/2018

Flexeril for Disorder characterized by Stiff, Tender & Painful Muscles

I was prescribed this medication for my fibromyalgia 15 years ago, and it really helped me by allowing me to sleep through the night. However, my new doctor has taken me off of it cold turkey and I am now dealing with a whole host of problems that I didn't have before. I don't know what to do at this point.

4

Patient Review

4/9/2019

Flexeril for Muscle Spasm

This treatment helped me a little bit with spasms. It reduced my pain level from a 10 to a 6.

3.3

Patient Review

4/4/2018

Flexeril for Disorder characterized by Stiff, Tender & Painful Muscles

After I fell off my bike, this medication really helped with the recovery process. It also fixed a lockjaw condition I had at the time, which surprised me. I've tried it since then but it doesn't work as well; it doesn't knock me out and I'm not sure if it's having much effect on the muscles. 2013 for fall- 2015 last dosing. Have they changed the formula?

2.3

Patient Review

12/4/2020

Flexeril for Muscle Spasm

The medication made me incredibly drowsy, but unfortunately did not help with my muscle spasms at all. So it was essentially a wash for me.

2.3

Patient Review

11/24/2017

Flexeril for Disorder characterized by Stiff, Tender & Painful Muscles

This caused my mouth to become very dry, and it wasn't as effective as soma was for me.

2

Patient Review

12/27/2017

Flexeril for Disorder characterized by Stiff, Tender & Painful Muscles

I felt really out of it and my muscle tightness got a lot worse. I started with the lowest dose and increased to the highest recommended, but I felt terrible.

2

Patient Review

8/7/2019

Flexeril for Muscle Spasm

The medicine helps with my extremely tense muscles but the bad taste it leaves in your mouth is absolutely horrid. I dont take it often do to the taste problem. I've tried brushing several times a day, flossing, gargling mouth wash, Salt water rinses, but nothing takes the horrible taste away. Does anyone have any recommendations?

1.7

Patient Review

8/1/2021

Flexeril for Disorder characterized by Stiff, Tender & Painful Muscles

The mental fog and sleepiness this pill caused me lasted for a full day, which was very unpleasant.

1

Patient Review

7/27/2017

Flexeril for Muscle Spasm

Despite using this treatment as directed, I unfortunately saw no relief from my lower back pain.

1

Patient Review

5/13/2018

Flexeril for Disorder characterized by Stiff, Tender & Painful Muscles

Not only did this medication not help with my stiffness or pain, but it made me feel awful. I would take a dose and then pass out. It was definitely not the solution for my problems.
image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about flexeril

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

Is Flexeril a strong painkiller?

"Flexeril does not kill pain but rather relaxes muscles."

Answered by AI

Is Flexeril a strong muscle relaxer?

"The two drugs most commonly used to treat musculoskeletal pain and muscle spasms are Robaxin and Flexeril. The more effective drug is the one that works best for your specific case. Flexeril is one of the most studied muscle relaxants and thus has more supporting evidence for its effectiveness."

Answered by AI

How does Flexeril make you feel?

"Flexeril can have some potentially desirable effects on the central nervous system, which can lead to misuse. People might abuse Flexeril to feel relaxed, mildly euphoric, or sedated. In high doses, Flexeril can cause a variety of anticholinergic effects that change the activity of brain neurotransmitters."

Answered by AI

Clinical Trials for Flexeril

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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We made a collection of clinical trials featuring Flexeril, we think they might fit your search criteria.
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