Generic Name: Tizanidine (tye ZAN i deen)
Brand Name: Zanaflex
Medically reviewed on July 4, 2018
Uses of Zanaflex:
- It is used to calm muscles.
- It may be given to you for other reasons. Talk with the doctor.
What do I need to tell my doctor BEFORE I take Zanaflex?
- If you have an allergy to tizanidine or any other part of Zanaflex (tizanidine).
- If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
- If you are taking any of these drugs: Ciprofloxacin or fluvoxamine.
This is not a list of all drugs or health problems that interact with Zanaflex (tizanidine).
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take Zanaflex (tizanidine) with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
What are some things I need to know or do while I take Zanaflex?
- Tell all of your health care providers that you take Zanaflex (tizanidine). This includes your doctors, nurses, pharmacists, and dentists.
- Avoid driving and doing other tasks or actions that call for you to be alert until you see how Zanaflex (tizanidine) affects you.
- To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down. Be careful going up and down stairs.
- Do not stop taking Zanaflex (tizanidine) all of a sudden without calling your doctor. You may have a greater risk of side effects. If you need to stop Zanaflex (tizanidine), you will want to slowly stop it as ordered by your doctor.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- Do not change from the capsule to the tablet or from the tablet to the capsule.
- Talk with your doctor before you drink alcohol or use other drugs and natural products that slow your actions.
- If you are 65 or older, use Zanaflex (tizanidine) with care. You could have more side effects.
- Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using Zanaflex (tizanidine) while you are pregnant.
- Tell your doctor if you are breast-feeding. You will need to talk about any risks to your baby.
How is this medicine (Zanaflex) best taken?
Use Zanaflex (tizanidine) as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take with or without food but take the same way each time. Always take with food or always take on an empty stomach.
What do I do if I miss a dose?
- If you take Zanaflex (tizanidine) on a regular basis, take a missed dose as soon as you think about it.
- If it is close to the time for your next dose, skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- Many times Zanaflex (tizanidine) is taken on an as needed basis. Do not take more often than told by the doctor.
See also: Dosage Information (in more detail)
What are some side effects that I need to call my doctor about right away?
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Signs of a urinary tract infection (UTI) like blood in the urine, burning or pain when passing urine, feeling the need to pass urine often or right away, fever, lower stomach pain, or pelvic pain.
- Very bad dizziness or passing out.
- Feeling confused.
- Hallucinations (seeing or hearing things that are not there).
- Mood changes.
- Change in the way you act.
- Slow heartbeat.
- Fever or chills.
- Sore throat.
What are some other side effects of Zanaflex?
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Dry mouth.
- Feeling sleepy.
- Feeling tired or weak.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
See also: Side effects (in more detail)
If OVERDOSE is suspected:
If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
How do I store and/or throw out Zanaflex?
- Store at room temperature.
- Protect from light.
- Store in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
Consumer information use
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else's drugs.
- Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
- Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
- Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about Zanaflex (tizanidine), please talk with your doctor, nurse, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
More about Zanaflex (tizanidine)
- Zanaflex Side Effects
- During Pregnancy
- Dosage Information
- Drug Images
- Drug Interactions
- Compare Alternatives
- Support Group
- Pricing & Coupons
- En Español
- 88 Reviews
- Generic Availability
- Drug class: skeletal muscle relaxants