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Tizanidne hydrochloride

TIZANIDNE HYDROCHLORIDE

Manufacturer: Bryant Ranch Prepack

Score: 142.0

Quick Summary

Tizanidine hydrochloride is a central alpha-2-adrenergic agonist used for the management of spasticity. It is available in 6 mg capsules and should be taken with or without food, with a recommended starting dose of 2 mg and a maximum daily dose of 36 mg. The drug has several important safety considerations, including contraindications with potent CYP1A2 inhibitors, warnings for hypotension, liver injury, sedation, hallucinosis, and hypersensitivity reactions. Dose adjustments are necessary for patients with renal or hepatic impairment, and special considerations are needed for use in pregnancy, nursing mothers, pediatric, and geriatric populations.

Key Clinical Findings and Indications

  • Tizanidine hydrochloride is a central alpha-2-adrenergic agonist
  • Used for the management of spasticity
  • Available in 6 mg capsules

Important Safety Information

Warning

Contraindicated with potent CYP1A2 inhibitors, warnings for hypotension, liver injury, sedation, hallucinosis, and hypersensitivity reactions

Contraindications

  • Potent CYP1A2 inhibitors (e.g., fluvoxamine, ciprofloxacin)

Adverse Reactions

  • Dry mouth
  • Somnolence
  • Asthenia
  • Dizziness
  • Urinary tract infection
  • Constipation
  • Liver function tests abnormal
  • Vomiting
  • Speech disorder
  • Amblyopia
  • Urinary frequency
  • Flu syndrome
  • Dyskinesia
  • Nervousness
  • Pharyngitis
  • Rhinitis

Dosing Recommendations

General Guidance

Dose adjustments necessary for patients with renal or hepatic impairment

Spasticity

Adult Dose

2 mg, repeated at 6- to 8-hour intervals, up to a maximum of 3 doses in 24 hours

Pediatric Dose

Not established

Special Population Considerations

Pregnancy

  • No adequate data on developmental risk
  • Use with caution

Nursing Mothers

  • No adequate data on effects on nursing infants
  • Use with caution

Pediatric Use

  • Safety and effectiveness not established

Geriatric Use

  • Use with caution due to increased risk of adverse reactions
  • Dose adjustments necessary for patients with renal impairment