Questions | Reviews ***~

Use of this medication with Relafen.

Greetings from San Juan, Puerto Rico. My doctor has prescribed me Parafon Forte DSC (I am using the generic Chlorzoxazone 500mg). He also prescribe me Relafen (but I have obted to use its generic Nabumetone 750mg). Can I take both medications at the s...
by Luis A. Perez-Miranda, II in San Juan, P.R., 04/15/2007

CHLORZOXAZONE (Oral) (Tablet) Drug and Prescription Information


CHLORZOXAZONE (Oral) (Tablet) Medication Classification


CHLORZOXAZONE (Oral) (Tablet) Brandname

Remular-S, Parafon Forte DSC

CHLORZOXAZONE (Oral) (Tablet) is used for the Treatment

Chlorzoxazone (klor-ZOX-a-zone) Treats pain and stiffness caused by muscle spasm.Belongs to a class of drugs called muscle relaxants.

When To Not Use CHLORZOXAZONE (Oral) (Tablet)

You should not use this medicine if you have ever had an allergic reaction to chlorzoxazone. You should not use if you have had a recent heart attack, heart failure, a heart rhythm disorder, heart block, or hyperthyroidism (overactive thyroid).

How Should You Use CHLORZOXAZONE (Oral) (Tablet)


  • Your doctor will tell you how much to take and how often.
  • You may take the tablets whole or you may crush the tablets and mix them with a small amount of food or liquid.
  • If a dose is missed:
  • Use the missed dose as soon as possible.
  • If it is almost time for your next regular dose, wait until then to use the medicine and skip the missed dose.
  • You should not use two doses at the same time.

Proper CHLORZOXAZONE (Oral) (Tablet) Storage

Store CHLORZOXAZONE (Oral) (Tablet) at room temperature away from sunlight and moisture unless otherwise stated by manufacturer's instructions or labelling. Keep CHLORZOXAZONE (Oral) (Tablet) and all medications out of the reach of children.

What To Avoid While Using CHLORZOXAZONE (Oral) (Tablet)

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • You should not use this medicine if you have used an MAO inhibitor such as Marplan® or Nardil® within the past 14 days.
  • Unless approved by your doctor, you should not use antidepressants, sleeping pills, tranquilizers, cold and allergy medicine, pain killers, or other muscle relaxants while using chlorzoxazone.
  • Do not drink alcohol while using this medicine.

CHLORZOXAZONE (Oral) (Tablet) Warnings

  • If you are pregnant or breastfeeding, talk to your doctor before using this medicine.
  • Talk to your doctor before using this medicine if you have kidney or liver disease or glaucoma.
  • You should not use more of this medicine, or use it for longer periods, than your doctor has ordered.
  • This medicine can cause drowsiness or blurred vision. Be careful while driving a car or operating machinery.
  • This medicine can sometimes cause your urine to turn an orange or red color. This is normal.

CHLORZOXAZONE (Oral) (Tablet) Side Effects

Call your doctor right away if you notice any of these side effects:

  • Skin rash or itching
  • Trouble breathing
  • Swelling of face or tongue
  • Yellowing of eyes or skin
  • Muscle weakness or slurred speech
  • If you notice these less serious side effects, talk with your doctor:
  • Drowsiness, dizziness, clumsiness
  • Constipation or diarrhea
  • Nausea or vomiting
  • Dry mouth
  • Heartburn or unpleasant taste

CHLORZOXAZONE (Oral) (Tablet) Ratings

Overall Rating:



(based on 2 reviews)



Ease of Use:


Overall Satisfaction:





Effectiveness: *

Ease of Use: *****

Overall Satisfaction: **


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