-alcohol
-antihistamines for allergy, cough and cold
-certain medicines for anxiety or sleep
-certain medicines for depression like amitriptyline, fluoxetine, sertraline
-certain medicines for seizures like phenobarbital, primidone
-general anesthetics like halothane, isoflurane, methoxyflurane, propofol
-local anesthetics like lidocaine, pramoxine, tetracaine
-medicines that relax muscles for surgery
-narcotic medicines for pain or cough
-phenothiazines like chlorpromazine, mesoridazine, prochlorperazine, thioridazine

They need to know if you have any of these conditions:
-if you often drink alcohol
-liver disease
-an unusual or allergic reaction to chlorzoxazone, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Tell your doctor or health care professional if your symptoms do not start to get better or if they get worse. This medicine is used with rest, exercise or physical therapy, or other treatments that your doctor recommends.

You may get drowsy or dizzy. Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you. Do not stand or sit up quickly, especially if you are an older patient. This reduces the risk of dizzy or fainting spells. Alcohol may interfere with the effect of this medicine. Avoid alcoholic drinks.

This medicine may change the color of the urine. This effect is harmless and will go away after you are done taking the medicine. It will change urine to an orange or purple-red color.

Keep out of the reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Keep container tightly closed. Throw away any unused medicine after the expiration date.