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Tizanidine & Irritant Cntr 2 Misc Precautions and Side Effects


IMPORTANT NOTE: The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate or effective for you. Consult your healthcare professional before using this drug.

Table of Contents

Generic Name: TIZANIDINE - ORAL
Pronounced: (tye-ZAN-i-deen)

Tizanidine & Irritant Cntr 2 Misc Precautions

Before taking tizanidine, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of:

  • low blood pressure or heart disease
  • kidney disease
  • liver disease

This drug may make you dizzy or drowsy or cause blurred vision. Do not drive, use machinery, or do any activity that requires alertness or clear vision until you are sure you can perform such activities safely. Avoid alcoholic beverages.

To minimize dizziness, stand up slowly when arising from a sitting or lying position.

Caution is advised when using this drug in the elderly because they may be more sensitive to its effects, especially dizziness and drowsiness.

This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.

It is not known whether this drug is excreted into human milk. Consult your doctor before breast-feeding.

Tizanidine & Irritant Cntr 2 Misc Side Effects

Constipation, dry mouth, drowsiness, dizziness, weakness and fatigue may occur. If any of these effects persist or worsen, contact your doctor or pharmacist promptly.

To relieve dry mouth, suck on (sugarless) hard candy or ice chips, chew (sugarless) gum, drink water or use a saliva substitute.

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor immediately if any of these unlikely but serious side effects occur:

  • fainting
  • mental/mood changes including seeing things that aren't there
  • frequent/burning urination
  • hearing or vision changes such as blurred vision

Tell your doctor immediately if any of these rare but very serious side effects occur:

  • black stool
  • slow or irregular heartbeat

Tizanidine rarely has caused very serious (possibly fatal) liver disease. Tell your doctor immediately if you develop symptoms of liver disease, including persistent nausea, stomach/abdominal pain, dark urine, yellowing eyes/skin.

A serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction include:

  • rash
  • itching/swelling (especially of the face/tongue/throat)
  • severe dizziness
  • trouble breathing

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.



CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.
Information last revised May 2010 Copyright(c) 2010 First DataBank, Inc.