Drug interactions
Gabapentin + Magnesium supplement
Severity: Moderate
Gabapentin and Magnesium supplement: 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
Oral magnesium-containing products reduce the absorption of gabapentin, lowering its bioavailability. This can reduce seizure or pain control if taken at the same time.
What this interaction means in plain words
Gabapentin and Magnesium supplement 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
Reduced intestinal absorption of gabapentin, possibly through binding to polyvalent cations or antacid effects.
What to do
Give gabapentin at least 2 hours after the magnesium product. Monitor clinical response if the timing cannot be separated.
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 Gabapentin
Frequently asked questions
Can I take Gabapentin with Magnesium supplement?
MediHelp rates the interaction as moderate. Gabapentin and Magnesium supplement 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. Oral magnesium-containing products reduce the absorption of gabapentin, lowering its bioavailability. This can reduce seizure or pain control if taken at the same time.
How serious is the interaction between Gabapentin and Magnesium supplement?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Give gabapentin at least 2 hours after the magnesium product. Monitor clinical response if the timing cannot be separated.
What other medicines interact with Gabapentin?
MediHelp also lists interactions of Gabapentin with, for example, Alprazolam, Amobarbital, Belladonna and opium. The full list is on the Gabapentin page.
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