Zanaflex side effects
See Drug Interactions (.5,.6 ) Hallucinosis/Psychotic-Like Symptoms Zanaflex use has been associated side with hallucinations. Therefore, concomitant use of zanaflex Zanaflex with fluvoxamine or zanaflex with ciprofloxacin, potent inhibitors of effects CYP1A2, is side contraindicated see zanaflex 4mg Contraindications ( side 4 ) and zanaflex Drug Interactions (.1,.2 ). "UK Summary of effects Product side Characteristics." O. Certain heart rhythm drugs side such as effects amiodarone, mexiletine, propafenone, or verapamil. These factors may affect how you side should use this side medication. Do not side give this medication to anyone else, even if zanaflex they have the side same symptoms zanaflex as you. Taking the zanaflex tablets with food can zanaflex side effects effects increase your side blood effects levels of side tizanidine. The side Cmax, AUC, and half-life of tizanidine increased side by 12-fold, 33-fold, and 3-fold, respectively. Some may be effects better suited for you than others. Its often used for people with multiple sclerosis, spinal effects cord injury, zanaflex side effects or muscle spasticity. Warnings for other groups For pregnant women: Tizanidine is a category C pregnancy drug. Using these drugs with tizanidine may cause very low blood pressure. You should always consult your effects doctor or other healthcare professional before zanaflex high taking any medication. Contraindications, zanaflex is contraindicated in patients zanaflex 4mg zanaflex taking potent inhibitors of CYP1A2, such as fluvoxamine or ciprofloxacin see Drug Interactions (.1,.2 ). Call your doctor for medical advice about side effects. Different medicines side work differently for different people, this drug did not work for me at all. It may also cause other side effects. These patients should be monitored closely for the zanaflex onset or increase in severity of the common adverse events (dry mouth, somnolence, asthenia effects and dizziness) as indicators of potential overdose. Following single and multiple oral dosing of 14C-tizanidine, an average of 60 and 20 of total effects radioactivity was recovered in the urine and feces, respectively. Maximum dosage: 3 doses in 24 hours. There were no differences in the number of spasms occurring in each group. Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. This can result in an increase in the number and severity of side effects. Changes in pharmacokinetics of tizanidine when administered with ciprofloxacin resulted in significantly decreased blood pressure, increased drowsiness, and increased psychomotor impairment see Contraindications ( 4 ) and Clinical Pharmacology (.3 ). Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: More Common Dizziness or lightheadedness, especially when getting up from zanaflex a lying zanaflex or sitting zanaflex position drowsiness. Impairment of fertility Oral administration of tizanidine resulted in reduced fertility in male and female rats following doses of 30 and 10 mg/kg/day, respectively. You may need to show airport staff the pharmacy label for your medication. Ask your doctor before taking a sleeping pill, narcotic pain medicine, prescription cough medicine, a muscle relaxer, or medicine for anxiety, depression, or seizures. See Dosage side and Administration (.2 ) Adverse Reactions The following adverse reactions are described elsewhere in other sections of the prescribing information: Hypotension see Warnings and Precautions (.1 ) Liver Injury see Warnings and Precautions (. See Clinical Pharmacology (.3 ) Alcohol effects Alcohol increases the overall amount of drug in the bloodstream after a dose of Zanaflex. 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. Call your doctor if you become pregnant while taking this drug. The overall effect of these actions is thought to reduce facilitation of spinal motor neurons. Follow your doctor's instructions carefully. This effect may happen before the dose of medication is enough to reduce the muscle spasticity. Also tell them about any supplements you take. Assess your symptoms and personal journey as a step in guiding your care. Monitor patients who take Zanaflex with another CNS depressant for symptoms of excess sedation. The more common side effects of tizanidine can include: dry mouth tiredness weakness dizziness urinary tract infection constipation vomiting trouble speaking runny nose sore throat vision problems, if these effects are mild, they may go away zanaflex within a few days or a couple of weeks. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without zanaflex talking to your doctor. To find out how this drug might interact with something else youre taking, talk to your doctor or pharmacist. See Warnings and Precautions (.1 ) USE IN specific populations Pregnancy Pregnancy Category C Zanaflex has not been studied in pregnant women. Tizanidine oral tablet may cause drowsiness. No effect on fertility was observed at doses of 10 (male) effects and 3 (female) mg/kg/day, which are approximately 8 and 3 times, respectively, the mrhd on a mg/m2 basis). In vitro studies of cytochrome P450 isoenzymes using human liver microsomes indicate that neither tizanidine nor the major metabolites are likely to affect the metabolism of other drugs metabolized by cytochrome P450 isoenzymes. Always carry the original zanaflex prescription-labeled container with you. The occurrence of these reactions is summarized in Table. Although 16 mg produced a larger effect, adverse events including hypotension were more common and more severe than in the 8 mg group. Dosing in Patients with Renal Impairment. You will need frequent blood tests to check your liver function. Since caffeine, alcohol, the nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them. Speak to your doctor about how any drug interactions are being managed or should be managed. In these patients, during titration, the individual doses should be reduced. You should take tizanidine only for daily activities that require relief from muscle spasms. Within a given patient, improvement in muscle tone was correlated with plasma concentration. The reduction in muscle tone was not associated with a reduction in muscle strength (a desirable outcome) but also did not lead to any consistent advantage of Zanaflex treated patients on measures of activities of daily living. Zanaflex is a registered trademark of Covis Pharma. See Dosing and Administration (.3 Warnings and Precautions (.2 and Clinical Pharmacology (.3 ). What other drugs could interact with this medication? Concomitant use should be avoided unless the necessity for Zanaflex therapy is clinically evident. Symptoms can include: increased bleeding or bruising yellowing of your skin or the whites of your eyes. Tizanidine has a half-life of approximately.5 hours (CV33). Effects of Zanaflex Warn patients that they may experience hypotension and to be careful when changing from a lying or sitting to a standing position. Not all possible interactions are listed in this medication guide. The following adverse reactions have been identified as occurring in the post marketing experience of Zanaflex. Do not take a double dose to make up for a missed one. When flying, never put it into a checked bag. Taking tizanidine with other drugs that make you sleepy or slow your breathing can cause dangerous side effects or death. Certain events, such as somnolence, dry mouth, hypotension, decreased blood pressure, bradycardia, dizziness, weakness or asthenia, muscle spasms, hallucinations, fatigue, liver function test abnormality and hepatotoxicity, have been observed in post marketing and clinical trials and are discussed in previous sections of this document. Zanaflex should be used with caution in patients with any hepatic impairment. See Use in Specific side Populations (.4,.5 effects ) Hepatic Impairment The influence of hepatic impairment on the pharmacokinetics of tizanidine has not been evaluated. Monitoring of aminotransferase levels is recommended for baseline and 1 month after maximum dose is achieved, or if hepatic injury is suspected. Impaired side Hepatic Function The influence of hepatic impairment on the pharmacokinetics of tizanidine has not been evaluated. Impaired Renal Function Zanaflex is known to be substantially excreted by the kidney, and the risk of adverse reactions to this drug may be greater in patients with impaired renal function. Antacids such as cimetidine or famotidine. The CNS depressant effects of Zanaflex with alcohol and other CNS depressants (e.g., benzodiazepines, opioids, tricyclic antidepressants) may be additive. The absence of warnings zanaflex or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses. Check with your doctor as soon as possible if any of the following side effects occur: abdominal pain difficulty speaking flu-like symptoms (e.g., fever, chills, cough, fatigue, sore throat) irregular heartbeat nervousness seeing things that are not there (hallucinations). How to tell if the drug is working: You should have fewer symptoms of muscle spasms. Birth control: Women taking birth control pills may need a lower dose of tizanidine to achieve a good effect. Three-quarters of the patients rated the events as mild to moderate side and one-quarter of the patients rated the events as being severe. Dont take this drug again if youve ever had an allergic reaction. That means two things: Research in animals has shown adverse effects to the fetus when the mother takes the drug. Zanaflex Description Zanaflex (tizanidine hydrochloride) is a central alpha2-adrenergic agonist. If you are concerned about side effects, discuss the risks and benefits of this medication with your doctor. Respiratory depression is another common feature of tizanidine overdose. Retrospective analysis of population pharmacokinetic data following single and multiple dose administration of 4 mg Zanaflex, however, showed that women concurrently taking oral contraceptives had 50 lower clearance of tizanidine compared to women not on oral contraceptives see Warnings and Precautions (.5 ). Because the effect of Zanaflex peaks at approximately 1 to 2 hours post-dose effects and dissipates between 3 to 6 hours post-dose, treatment side can be repeated at 6 to 8 hour intervals, as needed, to a maximum of three doses in 24 hours. Birth control pills prevent tizanidine from leaving the body readily and may cause tizanidine to build up in the body leading to side effects. These drugs are often used to treat similar conditions. It's used to treat muscle spasms caused by certain conditions such as multiple sclerosis, ALS, or spinal cord injury. Storage Store tizanidine tablets at 77F (25C). Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, zanaflex and use this medication only for the indication prescribed. Zanaflex tizanidine hydrochloride capsule Product Information Product Type human prescription drug label Item Code (Source) NDC: Route of Administration oral DEA Schedule Active Ingredient/Active Moiety Ingredient Name Basis of Strength Strength tizanidine hydrochloride (tizanidine) tizanidine 2 mg Inactive Ingredients Ingredient Name Strength. See Drug Interactions (.3 ) and Clinical Pharmacology (.3 ) Hypersensitivity Reactions Zanaflex can cause anaphylaxis. Follow all directions on your prescription label. Medical Disclaimer Next Dosage More about Zanaflex (tizanidine) Consumer resources Professional resources Related treatment guides. Risk of Liver Injury Zanaflex may cause hepatocellular liver injury. Other drugs may interact with tizanidine, including prescription and over-the-counter medicines, vitamins, and herbal products. Symptoms can include: trouble breathing itching swelling of your throat or tongue If you have an allergic reaction, call your doctor or local poison control center right away. They cant hurt your medication.
Zanaflex zanaflex is used to treat spasticity by temporarily relaxing muscle tone. Figure 1: Mean Tizanidine Concentration. Zanaflex tablets may be prescribed with or without food. Side effects: Dry mouth, drowsiness, dizziness, lightheadedness, constipation, weakness, and tiredness may occur. Zanaflex should be used with caution in zanaflex patients with any zanaflex hepatic impairment. Which drugs or supplements interact with tizanidine-oral? At endpoint (the protocol-specified time of outcome assessment there was a statistically significant reduction in zanaflex muscle tone zanaflex and frequency of spasms in the Zanaflex treated group zanaflex compared to placebo. See zanaflex warnings AND precautions zanaflex Drug Abuse And Dependence Abuse Abuse potential was not evaluated in human studies. Dosage AND administration, dosing Information, zanaflex, capsules. By 6 hours after treatment, muscle tone in the 8 and 16 mg Zanaflex groups was indistinguishable from zanaflex muscle tone in placebo treated patients. Single-Dose Study in Patients with Multiple Sclerosis with Spasticity In Study 1, patients with multiple sclerosis were randomized to receive single oral doses of drug or placebo. Full Prescribing Information" zanaflex (PDF). See zanaflex drug interactions and clinical pharmacology Hypersensitivity Reactions Zanaflex can cause anaphylaxis. 1 It has a volume of distribution.4 zanaflex L/kg following intravenous administration. Picture of Multiple Sclerosis Symptoms Symptoms of multiple sclerosis may be single or multiple and may range from mild to severe in intensity and short to long. Across the three studies patient ages ranged from 1569 years and.4 percent were women. Medical Disclaimer Next Side Effects Add zanaflex to My Med List More about Zanaflex (tizanidine) Consumer resources Professional resources Related zanaflex treatment guides. Differences between Zanaflex Capsules and Zanaflex Tablets Zanaflex Capsules and Zanaflex tablets are bioequivalent to each other under fasting conditions, but not under fed conditions. Not all possible interactions are listed in this medication guide. Ask your pharmacist about using those products zanaflex safely. Drug interactions: Drug interactions may change how your medications work or increase your risk for serious side effects. What happens if I overdose? You will need frequent blood tests to check your liver function.
The effects of zanaflex tizanidine are greatest on polysynaptic pathways. Skip the missed dose if it is almost time for your next scheduled dose. Caution is recommended when considering concomitant zanaflex use of tizanidine with zanaflex other inhibitors of CYP1A2, such as, antiarrhythmics (amiodarone, mexiletine, propafenone cimetidine, fluoroquinolones (ciprofloxacin, norfloxacin rofecoxib, oral contraceptives, and ticlopidine. Because these reactions are reported voluntarily from a zanaflex population of uncertain size, it is not zanaflex always possible to zanaflex reliably estimate their frequency or establish a causal relationship to drug exposure. The clinical manifestations of Zanaflex overdose were consistent with zanaflex its known pharmacology. Interactions with Medicines Although certain medicines should not be used together at all, in other cases two different medicines may zanaflex be used together even if an interaction might occur. When you have your prescription filled, look at the tablets or capsules in the bottle and make sure that you have received the right product. Acetaminophen did not affect the pharmacokinetics of tizanidine. When two 4 mg tablets were administered with food, the mean maximal plasma concentration was increased by approximately 30, and the median time to peak plasma concentration was increased by 25 minutes, to 1 hour and 25 minutes. Tizanidine is a lipid -soluble drug, which is only zanaflex slightly soluble in water and methanol. Using alcohol or tobacco with certain medicines may also zanaflex cause interactions to occur. A medicine can be used to prevent a disease, treat a disease over a period or cure a disease. The case reports suggest that these patients were also misusing narcotics. No effect on fertility was observed at doses of 10 (male) and 3 (female) mg/kg/day, which are approximately 8 and 3 times, zanaflex respectively, the mrhd on a mg/m basis). There was no increase in tumors in either species. Signs and symptoms including respiratory compromise, urticaria, and angioedema of the throat and tongue have been reported. In some situations, it may endanger your physical safety to be in a state of reduced muscle tone. Clinical Studies Tizanidine's capacity to reduce increased muscle tone associated with spasticity was demonstrated in two adequate and well controlled studies in patients with multiple sclerosis or spinal cord injury (Studies 1 and 2). Tell your doctor if you are breast-feeding a baby. Zanaflex is not recommended in this zanaflex patient population see Use in Specific Populations Renal Impairment Tizanidine clearance is reduced by more than 50 in elderly patients with renal zanaflex insufficiency (creatinine clearance 25 mL/min) compared to healthy elderly. Store at room temperature zanaflex away from moisture and heat. A month or so, a few months, a year or so, two years or more. Overdose symptoms may include weakness, drowsiness, confusion, slow heart rate, shallow breathing, feeling light-headed, or fainting. Zanaflex is a short-acting medication that should be taken only for daily activities that require relief from muscle spasticity. Following oral administration of either the tablet or capsule (in the fasted state peak plasma concentrations of tizanidine occurred.0 hours after dosing with a half-life of approximately 2 hours. Especially tell your doctor if you: are allergic to Zanaflex or to any of its ingredients have liver problems have kidney problems are pregnant or breastfeeding Tell your doctor about all the medicines you take including prescription and non-prescription medicines, vitamins, and herbal supplements. However, many people have no side effects or only have minor side effects. Spasm counts were also collected. Tell patients that they should not suddenly discontinue Zanaflex, because rebound hypertension and tachycardia may occur. Alcohol: Alcohol increased the AUC of tizanidine by approximately 20 while also increasing its Cmax by approximately. Your doctor may decide not to treat you with this medication or change some of the other medicines you take. Follow the directions on your prescription label carefully. You may also report side effects at http www. Figure 1: Mean Tizanidine Concentration. Dependence Tizanidine is closely related to clonidine, which is often abused in combination with narcotics and is known to cause symptoms of rebound upon zanaflex abrupt withdrawal. How well did Zanaflex work for you? Adverse reactions such as hypotension, bradycardia, or excessive drowsiness can occur when Zanaflex is taken with other CYP1A2 inhibitors, such as zileuton, fluoroquinolones other than ciprofloxacin (which is contraindicated antiarrythmics (amiodarone, mexiletine, propafenone cimetidine, famotidine, oral contraceptives, acyclovir, and ticlopidine). Active ingredient matches for Zanaflex: Tizanidine in Canada, Ireland, United Kingdom, United States. In general, symptoms resolve within zanaflex one to three days following discontinuation of Zanaflex and administration of appropriate therapy. If you have questions about side effects, call your doctor. A statistically significant reduction of the Ashworth score for Zanaflex compared to placebo was detected at 1, zanaflex 2 and 3 hours after treatment. Using this medicine with any of the following medicines is not recommended. Additional information about Zanaflex, zanaflex Indication: For the management of increased muscle tone associated with spasticity. Your health care professional may be able to help you prevent or reduce these side effects, but do check with them if any of the following side effects continue, or if you are concerned about them: More common: Dizziness or lightheadedness. Patients were titrated over 3 weeks up to a maximum tolerated dose or 36 mg daily given in three unequal doses (e.g., 10 mg given in the morning and afternoon and 16 mg given at night). See drug interactions and clinical pharmacology Hypersensitivity Reactions Zanaflex can cause anaphylaxis.