Amrix

Chronic Pain, Physical Therapy, Rest + 2 more

Treatment

20 Active Studies for Amrix

What is Amrix

Cyclobenzaprine

The Generic name of this drug

Treatment Summary

Cyclobenzaprine is a muscle relaxant first developed in 1961 that became available for human use in 1977. It is similar to an antidepressant medication, but it differs by one double bond. This drug is used as a short-term treatment for muscle spasms related to injuries.

Flexeril

is the brand name

image of different drug pills on a surface

Amrix Overview & Background

Brand Name

Generic Name

First FDA Approval

How many FDA approvals?

Flexeril

Cyclobenzaprine

1977

498

Effectiveness

How Amrix Affects Patients

Cyclobenzaprine is a medication used to relax tight muscles and reduce spasms. It works in the brainstem area, but how it works is not yet understood. Its effects usually last 4-6 hours, but it stays in the body longer, with a long half-life. Taking cyclobenzaprine with other serotonin-affecting medications can lead to a condition called serotonin syndrome, which can cause changes in mental status, muscle issues, and other symptoms. If any of these reactions occur, cyclobenzaprine should be stopped right away.

How Amrix works in the body

We don't know exactly how cyclobenzaprine works, but it appears to act on the brainstem. This helps reduce the activity of certain neurons, which then decreases the amount of nerve signals sent out to muscles. It may also work by blocking the serotonin pathway in the spinal cord, which is related to transmitting signals from the brain to the body.

When to interrupt dosage

The advised dosage of Amrix is contingent upon the diagnosed condition, for example Physical Therapy, Rest and Chronic Pain. The dosage amount also relies upon the prescribed method of administration listed 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

Amrix 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 Amrix.

Common Amrix 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.

Amrix Toxicity & Overdose Risk

The toxic dose of cyclobenzaprine in mice and rats is 338 mg/kg and 425 mg/kg respectively. Symptoms of overdose can include extreme sleepiness, rapid heartbeat, shaking, confusion, and hallucinations. In rare cases, the overdose can cause cardiac arrest, abnormal heart rhythm, dangerously low blood pressure, seizures, or a severe reaction of the nervous system. If someone has overdosed on cyclobenzaprine, it is recommended to call a poison control center before attempting to treat them. Treatment usually involves removing the drug from the body, closely monitoring their heart rate, and checking for signs of decreased breathing or a low

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

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

179 active clinical trials are being conducted to evaluate the efficacy of Amrix in providing relief from 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

Amrix Reviews: What are patients saying about Amrix?

5

Patient Review

9/20/2013

Amrix for Muscle Spasm

This drug has helped me immensely. I used to suffer from daily spasms, but this medication has all but stopped them. It's also much easier to tolerate than the last one I was on; that one had way too many side effects for me to handle.

5

Patient Review

6/24/2014

Amrix for Disorder characterized by Stiff, Tender & Painful Muscles

This is the first medication I've tried for my si joint dysfunction that has actually made a significant difference. I don't experience any grogginess, just less pain.

5

Patient Review

12/4/2013

Amrix for Muscle Spasm

This medication has been a game-changer for me. I have MS and it's the first afternoon drug that doesn't make me drowsy but still relieves my spasms.

4.7

Patient Review

5/19/2014

Amrix for Disorder characterized by Stiff, Tender & Painful Muscles

I was very surprised at how well this worked, especially given the high price tag. I would definitely recommend it to anyone who needs relief from muscle pain.

4.7

Patient Review

8/17/2013

Amrix for Disorder characterized by Stiff, Tender & Painful Muscles

This treatment has made life worth living again.

4.7

Patient Review

12/18/2011

Amrix for Muscle Spasm

4.7

Patient Review

5/3/2012

Amrix for Muscle Spasm

4

Patient Review

12/26/2015

Amrix for Muscle Spasm

I've been dealing with some pretty severe chronic pain in my upper back for a while now, and I've tried lots of different treatments. Finally, I found something that works: Amrix (brand name Prolax ER 15/30mg). It's helped me sleep better and the pain is gone. The only downside is that it gives me a sore throat, but overall it's a great medication.

3.3

Patient Review

4/1/2013

Amrix for Muscle Spasm

This medication helped with my coughing and breathing, but I found it difficult to take as directed.

3

Patient Review

4/2/2013

Amrix for Disorder characterized by Stiff, Tender & Painful Muscles

The medication does its job well enough, but it's certainly not extraordinary. The real issue I have with it is the cost; even with good insurance, I'm still paying $75 per prescription. That's just too expensive for me, so I'll be looking for a cheaper alternative.

1.7

Patient Review

1/3/2014

Amrix for Disorder characterized by Stiff, Tender & Painful Muscles

I just started this medicine, and I wanted to know about the potential side effects before taking it.

1

Patient Review

1/9/2012

Amrix for Disorder characterized by Stiff, Tender & Painful Muscles

image of drug pills surrounding a glass of water symbolizing drug consumption

Patient Q&A Section about amrix

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

What does cyclobenzaprine do to your body?

"Cyclobenzaprine is used to relax muscles, relieve pain, stiffness, and discomfort caused by strains, sprains, or injuries."

Answered by AI

Is Amrix the same as Flexeril?

"Amrix and Flexeril are both brand-name medications that contain the active drug cyclobenzaprine. Flexeril has been discontinued and is no longer available. Amrix is a long-acting form of cyclobenzaprine that comes in an extended-release (ER) capsule. It is taken by mouth once a day."

Answered by AI

Is Amrix a benzo?

"Some common benzodiazepines are diazepam (Valium), alprazolam (Xanax), lorazepam (Ativan), temazepam (Restoril), and clonazepam (Klonopin). Cyclobenzaprine is also known by the brand names Flexeril and Amrix."

Answered by AI

What is the drug Amrix used for?

"Cyclobenzaprine is a medication used to treat muscle spasms. It is typically used in conjunction with rest and physical therapy. The medication works by helping to relax the muscles. Cyclobenzaprine is not recommended for use in older adults due to an increased risk of side effects."

Answered by AI

Clinical Trials for Amrix

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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