If you stop using tizanidine suddenly after long-term use, you may have withdrawal symptoms such as dizziness, fast heartbeats, tremors, and anxiety. Ask your doctor how to safely stop using this medicine. Take the medicine as soon as you can, but skip the missed dose if it is almost time for your next dose.
Do not take two doses at one time. Overdose symptoms may include weakness, drowsiness, confusion, slow heart rate, shallow breathing, feeling light-headed, or fainting. Tizanidine usually starts to work within one to two hours and wears off after about six to eight hours. This medicine can make you feel sleepy, dizzy, or weak.
Let your doctor know if you experience any unusual side effects while using tizanidine. Health Topics. Health Tools. Tizanidine Zanaflex.
Brand Names: Zanaflex. Reviewed: November 24, You should not use tizanidine if you are allergic to it, or if: you also take the antidepressant fluvoxamine Luvox ; or you also take the antibiotic ciprofloxacin Cipro. Tell your doctor if you have ever had: liver disease; kidney disease; or low blood pressure. Side Effects. Side Effects What are the side effects of Tizanidine Zanaflex? Call your doctor at once if you have: a light-headed feeling, like you might pass out; weak or shallow breathing; confusion, hallucinations; or pain or burning when you urinate.
Common side effects may include: drowsiness, dizziness, weakness; feeling nervous; blurred vision; flu-like symptoms; dry mouth, trouble speaking; abnormal liver function tests; runny nose, sore throat; urination problems, painful urination; vomiting, constipation; or uncontrolled muscle movements.
Based on FDA pregnancy categories. Interactions What drugs and food should I avoid while taking Tizanidine Zanaflex? It works by blocking nerve impulses pain sensations that are sent to your brain. It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant. It is not known whether tizanidine passes into breast milk or if it could harm a nursing baby.
Tell your doctor if you are breast-feeding a baby. Follow all directions on your prescription label. Your doctor may occasionally change your dose to make sure you get the best results.
Do not use this medicine in larger or smaller amounts or for longer than recommended. In most cases you may take tizanidine up to 3 times in one day if needed. Allow 6 to 8 hours to pass between doses. You may take tizanidine with or without food, but take it the same way each time. Switching between taking tizanidine with food and taking it without food can make the medicine less effective or cause increased side effects.
Switching between tizanidine tablets and capsules can also cause changes in side effects or how well the medicine works. Follow your doctor's instructions carefully. After making any changes in how you take tizanidine, contact your doctor if you notice any change in side effects or in how well the medicine works.
Tizanidine is a short-acting medication, and its effects will be most noticeable between 1 and 3 hours after you take it. You should take tizanidine only for daily activities that require relief from muscle spasms. Do not take more than three doses 36 mg in a hour period.
Too much of this medicine can damage your liver. If you stop using tizanidine suddenly after long-term use, you may have withdrawal symptoms such as dizziness, fast heartbeats, tremors, and anxiety. Ask your doctor how to safely stop using this medicine. Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose.
Do not take extra medicine to make up the missed dose. Overdose symptoms may include weakness, drowsiness, confusion, slow heart rate, shallow breathing, feeling light-headed, or fainting.
In some situations, it may be dangerous for you to have reduced muscle tone. This medicine may impair your thinking or reactions. That is why it is important to talk to the doctor or a specialist from a recovery facility regarding any concerns about a possible dependence on this drug. Consult the doctor immediately if faced with hypotension, dry mouth, dizziness, or other symptoms.
The doctor might consider replacing the medication with another one. Any individual can access effective treatment for addiction to drugs in specialized facilities all over the country. Roger Weiss is a practicing mental health specialist at the hospital. Weiss combines his clinical practice and medical writing career since Apart from these activities, Dr.
Weiss also delivers lectures for youth, former addicts, and everyone interested in topics such as substance abuse and treatment. He has a particular interest in psychopharmacology, nutritional psychiatry, and alternative treatment options involving particular vitamins, dietary supplements, and administering auricular acupuncture.
AddictionResource aims to present the most accurate, trustworthy, and up-to-date medical content to our readers. Our team does their best for our readers to help them stay informed about vital healthcare decisions. Our writers and reviewers are experienced professionals in medicine, addiction treatment, and healthcare.
AddictionResource fact-checks all the information before publishing and uses only credible and trusted sources when citing any medical data. The Verified badge on our articles is a trusted sign of the most comprehensive scientifically-based medical content. If you have any concern that our content is inaccurate or it should be updated, please let our team know at [email protected]. Last Updated: October 11, Zanaflex Detection Window A Tizanidine drug test may include a blood, urine, or saliva test to detect the medication traces in the system.
The Variables That Affect How Long Does Tizanidine Stay in Your System Although the half-life of Zanaflex is around two and a half hours, how long does Tizanidine stay in your system varies from one person to another and depends on several factors and variables, which influence this period?
Such Factors Are: Age: No specific study was conducted to test this. However, a cross-study comparison of the data suggests that young patients can clear out the drug faster from their system compared to elderly patients.
Metabolism rate: It has a half-life of 2. The metabolites remain inactive and stay up to hours. Body mass and weight: A patient's body weight and mass must be calculated before administering any dose. Dose adjustment is required in the case of obese patients. As the drug clearance rate is high for an obese patient so an amount based on lean body weight is recommended, rather than total body weight.
Co-administered drugs: such as combining Tizanidine and Flexeril together It's always best to check with the doctor before it in combination with other medications. Tizanidine and Flexeril are both muscle relaxants and should be discussed beforehand with the doctor.
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