Drug interactions
Neostigmine + Pilocarpine
Severity: Moderate
Neostigmine and Pilocarpine: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Both drugs enhance cholinergic activity, so combined use may increase muscarinic adverse effects such as salivation, sweating, bradycardia, bronchospasm and gastrointestinal cramping.
What this interaction means in plain words
Neostigmine and Pilocarpine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Neostigmine belongs to Central Nervous System; Pilocarpine belongs to Miscellaneous.
Why it happens
Additive cholinergic effects from cholinesterase inhibition and direct muscarinic agonism.
What to do
Monitor for cholinergic toxicity, especially heart rate and respiratory symptoms, and reduce the dose of either drug if effects emerge. Take extra care in patients with asthma or bradyarrhythmias.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Neostigmine
Other interactions of Pilocarpine
- Amitriptyline + Pilocarpine Moderate
- Atenolol-chlorthalidone + Pilocarpine Moderate
- Atenolol + Pilocarpine Moderate
- Atropine + Pilocarpine Moderate
- Betaxolol + Pilocarpine Moderate
- Bethanechol + Pilocarpine Moderate
Frequently asked questions
Can I take Neostigmine with Pilocarpine?
MediHelp rates the interaction as moderate. Neostigmine and Pilocarpine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Both drugs enhance cholinergic activity, so combined use may increase muscarinic adverse effects such as salivation, sweating, bradycardia, bronchospasm and gastrointestinal cramping.
How serious is the interaction between Neostigmine and Pilocarpine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for cholinergic toxicity, especially heart rate and respiratory symptoms, and reduce the dose of either drug if effects emerge. Take extra care in patients with asthma or bradyarrhythmias.
What other medicines interact with Neostigmine?
MediHelp also lists interactions of Neostigmine with, for example, Huperzine a, Physostigmine, Pyridostigmine. The full list is on the Neostigmine page.
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