• Basic Info
• Top Questions
• Clinical Info
• Interactions

There may be other drugs that can interact with metaxalone. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

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

Stop using metaxalone and call your doctor at once if you have any of these serious side effects:

• nausea, stomach pain, loss of appetite;

• low fever;

• dark urine, clay-colored stools; or

• jaundice (yellowing of the skin or eyes).

Less serious side effects may include:

• drowsiness, dizziness;

• feeling nervous or irritable;

• headache;

• mild nausea, vomiting, upset stomach; or

• skin rash.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.