คำอธิบาย
Concurrent use of cetirizine and oxycodone may produce additive CNS and respiratory depression, increasing the risk of sedation and, at higher doses, respiratory compromise.
กลไก
Oxycodone activates mu-opioid receptors causing CNS and respiratory depression; cetirizine's residual CNS H1 antagonism adds to sedation; combined pharmacodynamic suppression of the central nervous system is greater than either agent alone.
ความสำคัญทางคลินิก
The FDA opioid labelling warns of additive depression with all CNS depressants including antihistamines; case reports of respiratory depression exist.
การจัดการ
If the combination is necessary, use the lowest effective doses; counsel patients to avoid alcohol and other CNS depressants; monitor for excessive sedation.
ข้อจำกัดความรับผิดชอบทางการแพทย์
This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making medication decisions.