Drug interactions
Metoclopramide intranasal + Valproic acid
Severity: Moderate
Metoclopramide intranasal and Valproic acid: 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
Metoclopramide can cause drowsiness and extrapyramidal effects and may lower the seizure threshold. Valproate also causes sedation and tremor, so adverse effects may overlap and seizure control could be affected.
What this interaction means in plain words
Metoclopramide intranasal and Valproic acid 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.
Why it happens
Additive CNS effects; no established pharmacokinetic mechanism.
What to do
Monitor for sedation, tremor, movement disorders and breakthrough seizures. Use the lowest effective metoclopramide dose for the shortest time.
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 Valproic acid
- Ertapenem + Valproic acid Contraindicated
- Imipenem / cilastatin / relebactam + Valproic acid Contraindicated
- Imipenem / cilastatin + Valproic acid Contraindicated
- Meropenem / vaborbactam + Valproic acid Contraindicated
- Meropenem + Valproic acid Contraindicated
- Calcium / magnesium / potassium / sodium oxybates + Valproic acid Major
Frequently asked questions
Can I take Metoclopramide intranasal with Valproic acid?
MediHelp rates the interaction as moderate. Metoclopramide intranasal and Valproic acid 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. Metoclopramide can cause drowsiness and extrapyramidal effects and may lower the seizure threshold. Valproate also causes sedation and tremor, so adverse effects may overlap and seizure control could be affected.
How serious is the interaction between Metoclopramide intranasal and Valproic acid?
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 sedation, tremor, movement disorders and breakthrough seizures. Use the lowest effective metoclopramide dose for the shortest time.
What other medicines interact with Valproic acid?
MediHelp also lists interactions of Valproic acid with, for example, Ertapenem, Imipenem / cilastatin / relebactam, Imipenem / cilastatin. The full list is on the Valproic acid page.
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