Chlorzoxazone

Description

Chlorzoxazone is a muscle relaxant which is used to relieve stiffness and pain caused by muscle sprains and strains. This medicine should be used in combination with rest and physical therapy to obtain the best possible effect.

Side effects

Major & minor side effects for Chlorzoxazone

  • Bloody stool
  • Constipation
  • Cough
  • Dark urine
  • Dizziness
  • Nausea and Vomiting
  • Drowsiness
  • Rash
  • Weakness
  • Stomach pain
  • Shortness of breath
  • Tightness of chest

Uses of Chlorzoxazone

What is it prescribed for?

  • Muscle spasm
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Concerns

Commonly asked questions

  • Onset of action
    The effect of this medicine can be observed within 1 hour of administration of the dose.
  • Duration of effect
    The amount of time for which this medicine remains active in the body is about 3 to 4 hours.
  • Safe with alcohol?
    Use of alcohol is not recommended during treatment with this medicine due to the increased risk of nervous system side effects such as dizziness, drowsiness, and difficulty concentrating. It is advised that you do not perform any activities that require high mental alertness such as driving a vehicle or operating machinery if you consume alcohol during treatment with this medicine.
  • Is it habit forming?
    No habit forming tendency has been reported.
  • Usage in pregnancy?
    This medicine is not recommended for use in pregnant women unless absolutely necessary. All the risks and benefits should be discussed with the doctor before taking this medicine.
  • Usage while breast-feeding?
    This medicine is not recommended for use in breastfeeding women unless absolutely necessary. All the risks and benefits should be discussed with the doctor before taking this medicine. Your doctor may prescribe a safer alternative based on your clinical condition.

Allergy

This medicine is not recommended for use in patients with a known allergy to chlorzoxazone.

Impaired Liver function

This medicine is not recommended for use in patients with a known history of liver function impairment due to the increased risk of severe adverse effects.
Warnings for special population

Pregnancy

This medicine is not recommended for use in pregnant women unless absolutely necessary. All the risks and benefits should be discussed with the doctor before taking this medicine.

Breast-feeding

This medicine is not recommended for use in breastfeeding women unless absolutely necessary. All the risks and benefits should be discussed with the doctor before taking this medicine. Your doctor may prescribe a safer alternative based on your clinical condition.
General warnings

Liver diseases

This medicine is not recommended for use in patients with a known history of hepatic impairment due to the increased risk of worsening of the patient's condition. Replacement with a suitable alternative should be done under your doctor's supervision.

Alcohol

Use of alcohol is not recommended during treatment with this medicine due to the increased risk of serious adverse effects.

Abnormal liver enzymes

If the patient develops abnormal liver enzymes during treatment with this medicine, the therapy should be discontinued immediately. Replacement with a suitable alternative should be done under your doctor's supervision.

Missed Dose

Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose. Do not double your dose to make up for the missed one.

Overdose

Seek emergency medical treatment or contact the doctor in case of an overdose
All drugs interact differently for person to person. You should check all the possible interactions with your doctor before starting any medicine.
Interaction with Alcohol

Description

N/A

Instructions

Use of alcohol is not recommended during treatment with this medicine due to the increased risk of nervous system side effects such as dizziness, drowsiness, and difficulty concentrating. It is advised that you do not perform any activities that require high mental alertness such as driving a vehicle or operating machinery if you consume alcohol during treatment with this medicine.
Interaction with Medicine

Amitriptyline

Tramadol

Codeine

Methadone

Pentazocine

Alprazolam

Disease interactions

Liver Disease

This medicine is not recommended for use in patients with a known history of liver diseases due to the increased risk of serious adverse effects and worsening of the patient's condition. Replacement with a suitable alternative should be done under your doctor's supervision.
Food interactions
Information not available.
Lab interactions
Information not available.
Take Chlorzoxazone exactly as instructed by the doctor. Do not take in larger or smaller amounts than advised/prescribed. Consult the doctor if you experience any undesirable side effects. Ensure that the treatment course is completed. Do not stop the use of this medicine without consulting your doctor.
Miscelleneous

Can be taken with or without food, as advised by your doctor

To be taken as instructed by doctor

May cause sleepiness

How it works
This medicine acts on the spinal cord and brain to reduce impulses responsible for muscle spasms.
Legal Status

Approved

Approved

Approved

Approved

Classification

Category

Skeletal muscle relaxants

Schedule

Schedule H

Chlorzoxazone - DrugBank [Internet]. Drugbank.ca. 2017 [cited 18 October 2017]. Available from:

https://www.drugbank.ca/drugs/DB00356

DailyMed - Chlorzoxazone tablet [Internet]. Dailymed.nlm.nih.gov. 2017 [cited 18 October 2017]. Available from:

https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=2f05e8e2-616f-475b-ac9f-c42e1a5dbe81

Chlorzoxazone: MedlinePlus Drug Information [Internet]. Medlineplus.gov. 2017 [cited 18 October 2017]. Available from:

https://medlineplus.gov/druginfo/meds/a682577.html

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Information on this page was last updated on 1 Nov 2017

Disclaimer

We’ve made all possible efforts to ensure that the information provided here is accurate, up-to-date and complete, however, it should not be treated as a substitute for professional medical advice, diagnosis or treatment. Practo only provides reference source for common information on medicines and does not guarantee its accuracy or exhaustiveness. The absence of a warning for any drug or combination thereof, should not be assumed to indicate that the drug or combination is safe, effective, or appropriate for any given patient. Practo does not assume any responsibility for any aspect of healthcare administered with the aid of information provided above. If you have any doubts about your medication then we strongly recommend that you consult with your doctor, nurse or healthcare provider. See detailed T&C here.