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Zanaflex is a medicine used to manage muscle spasms. Zanaflex is available as capsules and tablets.
How does this medication work?
Zanaflex works by relaxing your muscles, thereby relieving symptoms associated with muscle spasms.
What are the beneficial effects of this medication and when should I begin to have results?
What: Zanaflex has been shown to reduce the frequency of muscle spasms.
When: Everyone responds differently to treatment, so try to be patient and follow your healthcare provider's directions. It is important that you take Zanaflex exactly as your healthcare provider has prescribed.
How do I know it is working?
You may feel a relief in your muscle spasms after you take Zanaflex. This is a good indicator that the medicine is working. Your healthcare provider may ask you questions to assess how well your symptoms are controlled.
The following is not a full list of side effects. Side effects cannot be anticipated. If any develop or change in intensity, tell your healthcare provider as soon as possible. Only your healthcare provider can determine if it is safe for you to continue taking this medication.
More common side effects may include: dry mouth, drowsiness, weakness, dizziness, urinary tract infection, constipation, increased or abnormal liver function tests, vomiting, speech problems, lazy eye, increased urination, flu syndrome, uncontrollable movements of the upper body or extremities, nervousness, sore throat, inflammation of the lining of the nose.
Less common side effects may include:
Sudden fall in blood pressure with symptoms such as dizziness, lightheadedness, or fainting when rising too quickly from a sitting or lying position.
Liver problems with symptoms such as nausea or vomiting, loss of appetite, or yellowing of your skin or the whites of your eyes.
Zanaflex may also cause hallucinations.
Do not take Zanaflex if you are allergic to it or any of its ingredients.
Do not take Zanaflex if you take a medicine called fluvoxamine or ciprofloxacin.
Tell your healthcare provider about all prescription, over-the-counter, and herbal medications you are taking before beginning treatment with Zanaflex. Also, talk to your healthcare provider about your complete medical history, especially if you have kidney or liver problems.
The information below is based on the dosage guidelines your healthcare provider uses. Depending on your condition and medical history, your healthcare provider may prescribe a different regimen. Do not change the dosage or stop taking your medication without your healthcare provider's approval.
Adults: The recommended starting dose is 2 milligrams every 6 to 8 hours as needed. Do not take more than 3 doses in 24 hours.
Your healthcare provider may increase your dose as needed, until the desired effect is achieved.
It is important that you do not stop taking this medication abruptly. If you need to change or stop taking this medication, it is important that you only do this with the guidance of your healthcare provider.
Take Zanaflex exactly as prescribed by your healthcare provider. Do not change your dose or stop taking Zanaflex without first talking to your healthcare provider.
Take Zanaflex the same way, either with or without food every day.
Do not drive, operate heavy machinery, or engage in other dangerous activities until you know how Zanaflex affects you.
If Zanaflex is taken with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your healthcare provider before combining Zanaflex with the following: acyclovir, alcohol, birth control pills, blood pressure and anxiety medications known as alpha adrenergic agonists (such as guanfacine), certain antibiotics (such as ciprofloxacin or levofloxacin), cimetidine, famotidine, fluvoxamine, medications that slow down your brain function (such as oxycodone or alprazolam), medicines that affect your heart rhythm (such as amiodarone or verapamil), ticlopidine, or zileuton.
The effects of Zanaflex during pregnancy and breastfeeding are unknown. Tell your healthcare provider immediately if you are pregnant, plan to become pregnant, or are breastfeeding.
If you miss a dose of Zanaflex, take it as soon as you remember. However, if it is almost time for your next dose, skip the one you missed and return to your regular dosing schedule. Do not take two doses at once.
Store at room temperature.
In the event of a medical emergency call your doctor or 9-1-1 immediately. In the event of overdose, call your doctor or poison control for further instructions.
National Poison Control#: Call 1-800-222-1222
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