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Drug interactions

Dexamethasone-neomycin-polymyxin + Indomethacin

Severity: Moderate

Dexamethasone-neomycin-polymyxin and Indomethacin: 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

Corticosteroids combined with NSAIDs increase the likelihood of gastric irritation, ulceration and bleeding. This applies mainly when the dexamethasone combination is absorbed systemically; with topical ear or eye use the risk is low.

What this interaction means in plain words

Dexamethasone-neomycin-polymyxin and Indomethacin 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.

Dexamethasone-neomycin-polymyxin belongs to Anti Bacterial; Indomethacin belongs to Musculoskeletal.

Evidence level: Moderate

Why it happens

Additive gastrointestinal mucosal injury from corticosteroid effects and NSAID inhibition of protective prostaglandins.

What to do

Use the lowest effective doses for the shortest time and consider a proton pump inhibitor for gastroprotection if systemic exposure is expected. Watch for dyspepsia, melena or other signs of GI bleeding.

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?

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

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Frequently asked questions

Can I take Dexamethasone-neomycin-polymyxin with Indomethacin?

MediHelp rates the interaction as moderate. Dexamethasone-neomycin-polymyxin and Indomethacin 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. Corticosteroids combined with NSAIDs increase the likelihood of gastric irritation, ulceration and bleeding. This applies mainly when the dexamethasone combination is absorbed systemically; with topical ear or eye use the risk is low.

How serious is the interaction between Dexamethasone-neomycin-polymyxin and Indomethacin?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses for the shortest time and consider a proton pump inhibitor for gastroprotection if systemic exposure is expected. Watch for dyspepsia, melena or other signs of GI bleeding.

What other medicines interact with Dexamethasone-neomycin-polymyxin?

MediHelp also lists interactions of Dexamethasone-neomycin-polymyxin with, for example, Ketorolac, Lapatinib, Levofloxacin. The full list is on the Dexamethasone-neomycin-polymyxin page.

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