Klorzoxazon Evolan

Chlorzoxazone, the active ingredient in Klorzoxazon Evolan, is a muscle relaxant presented as an oral tablet for oral use. It is used to relieve muscle spasm and acute musculoskeletal pain in adult patients. GNH USA supplies Klorzoxazon Evolan as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Chlorzoxazone is indicated for conditions involving skeletal muscle spasm and acute musculoskeletal pain.

- Muscle spasm: provides relief of pain and stiffness associated with involuntary muscle contraction. - Acute low back pain: helps reduce discomfort during the early phase of low back strain. - Post‑operative muscle spasm: aids in controlling spasm after surgical procedures.

Common Side Effects: - Drowsiness: a feeling of sleepiness or reduced alertness. - Dizziness: sensation of light‑headedness or imbalance. - Nausea: mild to moderate upset stomach. - Headache: transient pain in the head region.

Serious or Rare Side Effects: - Hepatotoxicity: signs of liver injury such as jaundice or elevated enzymes. - Severe skin reactions: including Stevens‑Johnson syndrome or toxic epidermal necrolysis. - Blood dyscrasias: such as agranulocytosis or aplastic anemia. - Anaphylaxis: acute allergic reaction with breathing difficulty or swelling.

Chlorzoxazone should be used with caution in specific clinical situations.

- Pregnancy: safety not established; avoid unless benefit outweighs risk. - Liver disease: monitor hepatic function and consider dose adjustment. - Elderly: increased sensitivity to central effects; start with the lowest effective dose. - Concomitant CNS depressants: may enhance sedation; observe for excessive drowsiness. - Alcohol: may increase drowsiness and dizziness; advise avoidance. - Store at ambient temperature: keep below 25°C, in the original container, protect from moisture.

Chlorzoxazone may interact with several drug classes, requiring careful management.

Major Interactions (Avoid): - CNS depressants (opioids, benzodiazepines, barbiturates): may cause profound sedation. - Alcohol: additive CNS depression leading to marked drowsiness. - Liver enzyme inducers (rifampin, carbamazepine): may lower plasma concentrations and reduce efficacy.

Moderate Interactions (Monitor Closely): - Antihistamines: can increase sedation. - Tricyclic antidepressants: may enhance central nervous system depression. - Anticonvulsants (phenytoin): may alter chlorzoxazone metabolism.