相互作用
Colchicine + Ritonavir
重症度: 併用禁忌
Colchicine and Ritonavir: contraindicated interaction.
最終更新日 出典: US FDA label
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概要
Ritonavir substantially increases colchicine exposure, and life-threatening or fatal colchicine toxicity has been reported. Toxicity may include severe gastrointestinal illness, rhabdomyolysis, pancytopenia and multiorgan failure. The combination is contraindicated in patients with renal or hepatic impairment and requires major dose reduction in others.
この相互作用をわかりやすく説明すると
Colchicine and Ritonavir are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Colchicine belongs to Genitourinary; Ritonavir belongs to Anti Virals.
なぜ起こるのか
Ritonavir is a potent CYP3A4 and P-glycoprotein inhibitor, which markedly reduces colchicine clearance.
対処法
Do not combine in patients with renal or hepatic impairment. In patients with normal organ function where co-administration cannot be avoided, follow the labeled markedly reduced colchicine dosing and avoid repeating flare treatment for several days.
薬剤師に尋ねること
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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アカウントを作成してPro+トライアルを始めると、ColchicineとRitonavirの臨床対応の詳細なアドバイス、追加の注記、エビデンスの詳細、処方全体を対象とした相互作用チェッカーを利用できます。
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
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参考文献
Colchicineのその他の相互作用
Ritonavirのその他の相互作用
よくある質問
Can I take Colchicine with Ritonavir?
MediHelp rates the interaction as contraindicated. Colchicine and Ritonavir are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Ritonavir substantially increases colchicine exposure, and life-threatening or fatal colchicine toxicity has been reported. Toxicity may include severe gastrointestinal illness, rhabdomyolysis, pancytopenia and multiorgan failure. The combination is contraindicated in patients with renal or hepatic impairment and requires major dose reduction in others.
How serious is the interaction between Colchicine and Ritonavir?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not combine in patients with renal or hepatic impairment. In patients with normal organ function where co-administration cannot be avoided, follow the labeled markedly reduced colchicine dosing and avoid repeating flare treatment for several days.
What other medicines interact with Colchicine?
MediHelp also lists interactions of Colchicine with, for example, Clarithromycin, Cobicistat, Cyclosporine. The full list is on the Colchicine page.
完全なモノグラフ、用量、相互作用チェッカーはMediHelpアプリで
MediHelpアプリで、完全なリファレンスを開き、複数薬剤の相互作用をチェックし、用量ツールを利用できます。
