Increased risk of colchicine toxicity, including gastrointestinal disturbances (nausea, vomiting, diarrhea), myelosuppression, myopathy, and neuropathy. Both drugs can interfere with microtubule function.
Avoid concomitant use. If co-administration is unavoidable, monitor closely for signs of toxicity and consider dose reduction of colchicine. However, given the high risk, it's generally recommended to choose an alternative muscle relaxant.
Increased sedation, dizziness, drowsiness, impaired coordination, and psychomotor impairment. This can lead to an increased risk of accidents.
Advise patients to avoid or limit alcohol consumption while taking thiocolchicoside.
Antidepressants (tricyclic Antidepressants Like Amitriptyline, Mirtazapine)Moderate
Database
Increased sedation, drowsiness, and dizziness.
Use with caution. Advise patients about the increased risk of sedation and to avoid activities requiring mental alertness.
Antihistamines (sedating, E.g., Diphenhydramine, Chlorpheniramine)Moderate
Database
Increased sedation, drowsiness, and dizziness.
Use with caution. Advise patients about the increased risk of sedation and to avoid activities requiring mental alertness.
Antipsychotics (e.g., Olanzapine, Risperidone)Moderate
Database
Increased sedation, drowsiness, and dizziness.
Use with caution. Advise patients about the increased risk of sedation and to avoid activities requiring mental alertness.
Opioid Analgesics (e.g., Tramadol, Codeine, Morphine)Moderate
Database
Increased sedation, drowsiness, dizziness, and respiratory depression. This combination can significantly increase the risk of respiratory arrest.
Use with caution. If co-administration is necessary, consider lower doses of both drugs and monitor closely for excessive CNS depression and respiratory depression. Advise patients about the increased risk of sedation and to avoid activities requiring mental alertness.
Other Muscle Relaxants (e.g., Tizanidine, Baclofen, Carisoprodol, Cyclobenzaprine)Moderate
Database
Increased sedation, dizziness, drowsiness, impaired coordination, and respiratory depression. This can significantly impair daily activities and increase the risk of falls or accidents.
Avoid concomitant use if possible. If co-administration is necessary, use with extreme caution, start with lower doses of both drugs, and monitor closely for excessive CNS depression. Advise patients to avoid driving or operating heavy machinery.
Sedatives/hypnotics (e.g., Benzodiazepines Like Diazepam, Lorazepam; Zolpidem)Moderate
Database
Increased sedation, drowsiness, dizziness, and respiratory depression. This can lead to profound CNS depression.
Use with caution. If co-administration is necessary, consider lower doses of both drugs and monitor closely for excessive CNS depression. Advise patients about the increased risk of sedation and to avoid activities requiring mental alertness.