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Remular-S

Generic name: chlorzoxazone

Brand names: Lorzone, Paraflex, Remular-S

Last updated November 3, 2026 0 views
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What is Remular-S?

Remular-S is a muscle relaxer that is used alongside rest and physical therapy to treat skeletal muscle conditions like pain or injury.

Remular-S may also be used for reasons not mentioned in this medication guide.

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How should I take Remular-S?

Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may change your dose from time to time. Use the medicine exactly as directed.

Remular-S is usually taken 3 or 4 times per day. Follow your doctor's dosing instructions very carefully.

Remular-S is only one part of a complete treatment plan that may also include rest, physical therapy, or other pain relief measures. Follow your doctor's instructions.

Store at room temperature away from moisture and heat.

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Warnings

Follow all instructions on your medicine label and package. Inform each of your healthcare providers about all your medical conditions, allergies, and all medicines you take.

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Before taking this medicine

You should not use Remular-S if you are allergic to it.

Tell your doctor if you have ever had:

  • liver disease.

Tell your doctor if you are pregnant or breast-feeding.

Remular-S is not approved for use by anyone younger than 18 years old.

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Remular-S side effects

Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Remular-S may cause serious side effects. Stop using Remular-S and call your doctor right away if you have:

  • a light-headed feeling, like you might faint;
  • skin rash, itching, or redness;
  • liver problems--pain in the upper right side of your stomach, loss of appetite, vomiting, fever, unusual tiredness, dark urine, or jaundice (yellowing of the skin or eyes); or
  • signs of stomach bleeding--bloody or tarry stools, coughing up blood or vomit that looks like coffee grounds.

Common side effects of Remular-S may include:

  • drowsiness;
  • dizziness; or
  • general ill feeling.

This is not a complete list of side effects and others may happen. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

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What happens if I miss a dose?

Take the medicine as soon as you can, but skip the missed dose if it is close to the time for your next dose. Do not take two doses at the same time.

This section was rewritten for readability and reviewed for meaning.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.

Overdose symptoms may include nausea, vomiting, diarrhea, severe drowsiness, headache, muscle weakness, shallow breathing, or fainting.

  • Drinking alcohol with Remular-S can cause side effects.
  • Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.

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What other drugs will affect Remular-S?

Using Remular-S with other drugs that cause drowsiness can make you feel even more tired. Talk to your doctor before taking opioid medication, a sleeping pill, a muscle relaxer, or medicine for anxiety or seizures.

Other drugs can also impact how Remular-S works, including prescription and over-the-counter medicines, vitamins, and herbal products. Inform your doctor about all your current medicines and any medicine you begin or stop using.

This section was rewritten for readability and reviewed for meaning.

Related medicines

Before you take this medicine: the information on this page is general and may not cover your personal circumstances. Read the label supplied with your medicine and ask a pharmacist or doctor if you are unsure, especially if you are pregnant, breastfeeding, taking other medicines or managing a long-term condition.
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Content is provided for education and is not medical advice. See our medical disclaimer.