Tizanidine Medication Summary
No separate FDA Medication Guide was found for this label. This summary is based on FDA/DailyMed prescribing information.
What is this medication?
tizanidine is described in FDA/DailyMed prescribing information. No separate FDA Medication Guide was found for this label. This summary is based on FDA/DailyMed prescribing information.
What is this medication used for?
Tizanidine is indicated for the treatment of spasticity in adults.
What should I know before taking it?
Tizanidine is contraindicated in patients: • taking strong CYP1A2 inhibitors [see Drug Interactions (7.1)]. • with a history of hypersensitivity to tizanidine or the ingredients in tizanidine tablets. Symptoms have included anaphylaxis and angioedema [see Warnings and Precautions (5.5)].
What important warnings are listed?
5 WARNINGS AND PRECAUTIONS Hypotension: monitor for signs and symptoms of hypotension, in particular in patients receiving concurrent antihypertensives; tizanidine should not be used with other α 2 -adrenergic agonists ( 5.1 , 7.5 ) Risk of liver injury: monitor ALTs; discontinue tizanidine if liver injury occurs ( 5.2 ) Sedation: Tizanidine may interfere with everyday activities; sedative effects of tizanidine, alcohol, and other central nervous system (CNS) depressants are additive ( 5.3 , 7.4 ) Hallucinations: consider discontinuation of tizanidine ( 5.4 ) 5.1 Hypotension Tizanidine is an α 2 -adrenergic agonist that can produce hypotension [see Adverse Reactions ( 6.1 ) and Drug.
How is this medication usually taken?
Tablets 2 mg - white to off-white, round, scored tablets, imprinted “APO” over “TI-2” on one side and plain with a bisect score on the other side. 4 mg- white to off-white, round, scored tablets, imprinted “APO” over “TI-4” on one side and plain with a quadrisect score on the other side.
What side effects are listed?
The following clinically significant adverse reactions are described elsewhere in other sections of the prescribing information: • Hypotension [see Warnings and Precautions (5.1)] • Liver Injury [see Warnings and Precautions (5.2)] • Sedation [see Warnings and Precautions (5.3)] • Hallucinosis/Psychotic-Like Symptoms [see Warnings and Precautions (5.4)] • Hypersensitivity Reactions [see Warnings and Precautions (5.5)] • Withdrawal Adverse Reactions [see Warnings and Precautions (5.6)]
What interactions are listed?
7 DRUG INTERACTIONS Moderate or weak CYP1A2 inhibitors: avoid concomitant use; may cause hypotension, bradycardia, or excessive drowsiness; if concomitant use is necessary and adverse reactions occur, reduce tizanidine dosage or discontinue. ( 7.2 , 12.3 ) 7.1 Strong CYP1A2 Inhibitors Concomitant use of tizanidine with strong cytochrome P450 1A2 (CYP1A2) inhibitors (e.g., fluvoxamine, ciprofloxacin) is contraindicated. Changes in pharmacokinetics of tizanidine when administered with a strong CYP1A2 inhibitor resulted in significantly decreased blood pressure, increased drowsiness, and increased psychomotor impairment [see Contraindications ( 4 ) and Clinical Pharmacology ( 12.3 )]. 7.2.
Where can I find the official prescribing information?
Review the full prescribing information on DailyMed: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=01c0d3d3-2373-a1b7-822a-80a66291a248
⚠️ Disclaimer
This summary is for educational purposes only and is not medical advice. Always consult your doctor, pharmacist, or other licensed healthcare professional before starting, stopping, or changing any medicine. Read full medical disclaimer.