Drug interactions
Amifampridine + Penicillin g
Severity: Moderate
Amifampridine and Penicillin g: 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
Amifampridine carries a dose-related seizure risk, and high-dose penicillin G can lower the seizure threshold, especially in renal impairment. Together they may increase the risk of seizures.
What this interaction means in plain words
Amifampridine and Penicillin g 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.
Amifampridine belongs to Central Nervous System; Penicillin g belongs to Anti Bacterial.
Why it happens
Additive lowering of seizure threshold: potassium channel blockade with enhanced neuronal excitability from amifampridine and GABA-A antagonism by penicillin G.
What to do
Avoid high-dose penicillin G where alternatives exist and adjust penicillin dose for renal function. Monitor for neurological signs and seizures.
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 Penicillin g
- Amiloride + Penicillin g Moderate
- Bcg vaccine live + Penicillin g Moderate
- Cholera vaccine + Penicillin g Moderate
- Colestipol + Penicillin g Moderate
- Deflazacort + Penicillin g Moderate
- Demeclocycline + Penicillin g Moderate
Other interactions of Amifampridine
- Amifampridine + Bupropion-naltrexone Major
- Amantadine + Amifampridine Moderate
- Amifampridine + Amitriptyline Moderate
- Amifampridine + Baclofen Moderate
- Amifampridine + Bethanechol Moderate
- Amifampridine + Bromocriptine Moderate
Frequently asked questions
Can I take Amifampridine with Penicillin g?
MediHelp rates the interaction as moderate. Amifampridine and Penicillin g 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. Amifampridine carries a dose-related seizure risk, and high-dose penicillin G can lower the seizure threshold, especially in renal impairment. Together they may increase the risk of seizures.
How serious is the interaction between Amifampridine and Penicillin g?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid high-dose penicillin G where alternatives exist and adjust penicillin dose for renal function. Monitor for neurological signs and seizures.
What other medicines interact with Penicillin g?
MediHelp also lists interactions of Penicillin g with, for example, Amiloride, Bcg vaccine live, Cholera vaccine. The full list is on the Penicillin g page.
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