---
title: "Gout medicines: interactions and safety"
canonical_url: https://www.gout-life.com/treatments/medicine-interactions-and-safety/
updated: 2026-10-29
medical_review: pending
---

# Gout medicines: interactions and safety

> General educational information, not medical advice, diagnosis, or treatment.

An interaction check needs the whole medicine list: prescriptions, over-the-counter pain relief, vitamins, herbs, homeopathic products, recent antibiotics, and occasional treatments. Exact products and doses, kidney function, and liver function all matter. This page highlights questions to raise; it cannot clear a combination as safe for you. [S09] [S10] [S20]

## Important examples to have checked

| Medicine | Why a review matters |
| --- | --- |
| Allopurinol | Azathioprine and mercaptopurine need specialist handling; other drugs can affect rash or toxicity risk. |
| Febuxostat | US labeling contraindicates use with azathioprine or mercaptopurine. |
| Colchicine | Certain CYP3A4 and P-glycoprotein inhibitors can cause dangerous accumulation, especially with kidney or liver impairment. |
| Probenecid | It changes clearance of several drugs, including methotrexate; salicylates can oppose its urate-removing effect. |
| Pegloticase | The specialist regimen includes specific directions for oral ULT and methotrexate co-treatment. |

These examples are not a complete interaction database. [S09] [S10] [S11] [S12] [S13]

## Keep the reason for other medicines in view

Diuretics can affect urate, but may be treating an important condition. ACR conditionally supports switching hydrochlorothiazide or choosing losartan when feasible, while advising against stopping indicated low-dose aspirin. Do not discontinue heart or transplant medicines because they appear on a gout-risk list. [S02]

## Bring the supplement container

Natural products can contain active substances, interact with prescriptions, and vary in ingredients. A package or exact ingredient list helps a pharmacist assess what you are actually using. [S20]

## Emergencies need care, not another search

A new rash while taking allopurinol means stopping it and seeking prompt medical advice. Severe skin symptoms, breathing difficulty, swelling, or severe illness need emergency assessment. A possible colchicine overdose needs immediate help even before symptoms develop. [S09] [S10]

Have new prescriptions and changes checked rather than assuming a previous interaction review still covers them.

## Related pages

- [When joint symptoms need urgent help](https://www.gout-life.com/symptoms/when-to-get-urgent-help/)
- [Allopurinol](https://www.gout-life.com/treatments/allopurinol/)
- [Colchicine](https://www.gout-life.com/treatments/colchicine/)
- [Herbs, vinegar and traditional remedies](https://www.gout-life.com/remedies/herbs-vinegar-and-traditional-remedies/)

## Sources

- [S02: 2020 American College of Rheumatology Guideline for the Management of Gout](https://pmc.ncbi.nlm.nih.gov/articles/PMC10563586/)
- [S09: DailyMed: Allopurinol tablets prescribing information](https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=e11e94b9-d897-48ce-9a80-aa6b8b5fde02&type=display)
- [S10: DailyMed: Colchicine tablets prescribing information](https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=df1dd89a-a1b3-48e8-b0e8-ad71b4cb0c96&type=display)
- [S11: DailyMed: ULORIC febuxostat prescribing information](https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=54de10ef-fe5f-4930-b91d-6bbb04c664bd)
- [S12: DailyMed: Probenecid tablets prescribing information](https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=f2375d90-4132-4fb6-aee7-c4f9d11e98d5)
- [S13: DailyMed: KRYSTEXXA pegloticase prescribing information](https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=6e566303-d93a-4130-b764-25749829aa95)
- [S20: NCCIH: Using dietary supplements wisely](https://www.nccih.nih.gov/health/using-dietary-supplements-wisely)

[S02]: https://pmc.ncbi.nlm.nih.gov/articles/PMC10563586/ "2020 American College of Rheumatology Guideline for the Management of Gout"
[S09]: https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=e11e94b9-d897-48ce-9a80-aa6b8b5fde02&type=display "DailyMed: Allopurinol tablets prescribing information"
[S10]: https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=df1dd89a-a1b3-48e8-b0e8-ad71b4cb0c96&type=display "DailyMed: Colchicine tablets prescribing information"
[S11]: https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=54de10ef-fe5f-4930-b91d-6bbb04c664bd "DailyMed: ULORIC febuxostat prescribing information"
[S12]: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=f2375d90-4132-4fb6-aee7-c4f9d11e98d5 "DailyMed: Probenecid tablets prescribing information"
[S13]: https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=6e566303-d93a-4130-b764-25749829aa95 "DailyMed: KRYSTEXXA pegloticase prescribing information"
[S20]: https://www.nccih.nih.gov/health/using-dietary-supplements-wisely "NCCIH: Using dietary supplements wisely"

## Educational scope

Gout Life provides general educational information, not medical advice, diagnosis, or treatment. Talk with a qualified healthcare professional about symptoms, medicines, and treatment decisions. Do not delay medical care because of information on this site. If you think you may have a medical emergency, call your local emergency number.