Interações medicamentosas
Trihexyphenidyl + Trospium
Gravidade: Grave
Trihexyphenidyl and Trospium: major interaction.
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Resumo
Trihexyphenidyl is a strongly anticholinergic antiparkinsonian agent, so adding trospium compounds antimuscarinic effects. Constipation, urinary retention, dry mouth, blurred vision, confusion and hyperthermia risk are all increased, especially in older adults.
O que esta interação significa em palavras simples
Trihexyphenidyl and Trospium 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.
Trihexyphenidyl belongs to Central Nervous System; Trospium belongs to Genitourinary.
Por que acontece
Additive muscarinic receptor antagonism.
O que fazer
Avoid the combination in elderly or cognitively impaired patients, and consider an alternative for bladder symptoms. If used, monitor for urinary retention, ileus and confusion.
O que perguntar ao farmacêutico
- 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?
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Outras interações de Trospium
- Clozapine + Trospium Grave
- Pramlintide + Trospium Grave
- Thioridazine + Trospium Grave
- Aclidinium + Trospium Moderada
- Amantadine + Trospium Moderada
- Amitriptyline + Trospium Moderada
Outras interações de Trihexyphenidyl
Perguntas frequentes
Can I take Trihexyphenidyl with Trospium?
MediHelp rates the interaction as major. Trihexyphenidyl and Trospium 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. Trihexyphenidyl is a strongly anticholinergic antiparkinsonian agent, so adding trospium compounds antimuscarinic effects. Constipation, urinary retention, dry mouth, blurred vision, confusion and hyperthermia risk are all increased, especially in older adults.
How serious is the interaction between Trihexyphenidyl and Trospium?
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 in elderly or cognitively impaired patients, and consider an alternative for bladder symptoms. If used, monitor for urinary retention, ileus and confusion.
What other medicines interact with Trospium?
MediHelp also lists interactions of Trospium with, for example, Clozapine, Pramlintide, Thioridazine. The full list is on the Trospium page.
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