Tizanidine: Side Effects, Uses & Monitoring
Facts extracted from current FDA product labeling for Tizanidine. Educational only — not medical advice.
Reported adverse reactions
| Reaction | Highest frequency reported* |
|---|---|
| Asthenia * | 78% |
| Dry mouth | 49% |
| Somnolence | 48% |
| Asthenia* | 41% |
| Hypotension | 33% |
| Dizziness | 16% |
| Uti | 10% |
| Bradycardia | 10% |
| Infection | 6% |
| Constipation | 4% |
| Liver function tests abnormal | 3% |
| Vomiting | 3% |
| Speech disorder | 3% |
| Amblyopia (blurred vision) | 3% |
| Urinary frequency | 3% |
| Flu symptom | 3% |
| Sgpt/alt increased | 3% |
| Dyskinesia | 3% |
| Nervousness | 3% |
| Pharyngitis | 3% |
*Highest percentage across placebo-controlled trial tables summarized in current labeling.
Labeled uses
Tizanidine tablets are a short-acting drug for the management of spasticity. Because of the short duration of effect, treatment with tizanidine should be reserved for those daily activities and times when relief of spasticity is most important (see DOSAGE AND ADMINISTRATION ).
Source: FDA labeling via NIH DailyMed (set 5a42267f…). Not affiliated with FDA or NIH.
Medical disclaimer: Always consult a qualified healthcare professional about any medication.