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Interazioni tra farmaci

Physostigmine + Rivastigmine

Gravità: Maggiore

Physostigmine and Rivastigmine: major interaction.

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Sintesi

Both drugs inhibit acetylcholinesterase, so combining them can cause cholinergic excess including bradycardia, bronchospasm, vomiting, salivation and seizures. Physostigmine crosses into the CNS and has a narrow therapeutic window.

Cosa significa questa interazione in parole semplici

Physostigmine and Rivastigmine 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.

Livello di evidenza: Moderate

Perché avviene

Additive cholinesterase inhibition.

Cosa fare

Avoid concurrent use unless clinically necessary, and monitor heart rate, respiration and neurological status closely. Have atropine available to treat cholinergic toxicity.

Cosa chiedere al farmacista

  • 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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Domande frequenti

Can I take Physostigmine with Rivastigmine?

MediHelp rates the interaction as major. Physostigmine and Rivastigmine 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 drugs inhibit acetylcholinesterase, so combining them can cause cholinergic excess including bradycardia, bronchospasm, vomiting, salivation and seizures. Physostigmine crosses into the CNS and has a narrow therapeutic window.

How serious is the interaction between Physostigmine and Rivastigmine?

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 concurrent use unless clinically necessary, and monitor heart rate, respiration and neurological status closely. Have atropine available to treat cholinergic toxicity.

What other medicines interact with Rivastigmine?

MediHelp also lists interactions of Rivastigmine with, for example, Donepezil, Galantamine, Memantine-donepezil. The full list is on the Rivastigmine page.

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