相互作用
Oxybutynin + Trihexyphenidyl
重症度: 重大
Oxybutynin and Trihexyphenidyl: major interaction.
最終更新日
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概要
Both are potent anticholinergics, so together they can cause marked dry mouth, constipation, urinary retention, blurred vision, tachycardia, confusion and hallucinations. Elderly patients are at high risk of delirium and ileus.
この相互作用をわかりやすく説明すると
Oxybutynin and Trihexyphenidyl can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Oxybutynin belongs to Genitourinary; Trihexyphenidyl belongs to Central Nervous System.
なぜ起こるのか
Additive muscarinic receptor antagonism.
対処法
Avoid the combination where possible, using a non-anticholinergic bladder agent. If used, monitor for delirium, constipation and urinary retention and use the lowest doses.
薬剤師に尋ねること
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
Pro+会員向け
ページ全体を見る
アカウントを作成してPro+トライアルを始めると、OxybutyninとTrihexyphenidyl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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Oxybutyninのその他の相互作用
Trihexyphenidylのその他の相互作用
よくある質問
Can I take Oxybutynin with Trihexyphenidyl?
MediHelp rates the interaction as major. Oxybutynin and Trihexyphenidyl can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both are potent anticholinergics, so together they can cause marked dry mouth, constipation, urinary retention, blurred vision, tachycardia, confusion and hallucinations. Elderly patients are at high risk of delirium and ileus.
How serious is the interaction between Oxybutynin and Trihexyphenidyl?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination where possible, using a non-anticholinergic bladder agent. If used, monitor for delirium, constipation and urinary retention and use the lowest doses.
What other medicines interact with Oxybutynin?
MediHelp also lists interactions of Oxybutynin with, for example, Bethanechol, Clozapine, Potassium chloride. The full list is on the Oxybutynin 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。
