SAFE — No Known Interaction
🟢 SAFE — Selenium and Rifaximin can be taken together safely.
Evidence level: THEORETICAL
Selenium and Rifaximin are generally considered safe to use together based on current medical evidence. No adverse interactions have been reported.
No clinically significant interaction between Selenium and Rifaximin has been identified in medical literature or FDA drug labeling.
No interaction documented between Selenium and Rifaximin. Always inform your healthcare provider about all supplements you take.
Critical: Selenium can chelate with Rifaximin, forming insoluble complexes in the gut that dramatically reduce antibiotic absorption — potentially by 50-90%. Take the mineral at least 2 hours before or 4-6 hours after the antibiotic. This is especially important with tetracyclines and fluoroquinolones.
Higher risk for: those with liver or renal impairment, elderly, concurrent use of nephrotoxic or hepatotoxic drugs, history of C. difficile infection, or those on narrow therapeutic index medications (warfarin, digoxin).
Monitor for altered effectiveness and side effects when combining Selenium with Rifaximin. Antibiotics can affect liver enzymes and alter the blood levels of other medications. Watch for: unusual nausea, vomiting, diarrhea (especially watery or bloody), stomach cramps, skin rash, dizziness, or signs the other medication is working differently than usual. When to seek emergency help: Severe allergic reaction (difficulty breathing, swelling of face/throat, hives), severe or persistent diarrhea (possible C. difficile infection), yellowing of skin or eyes, dark urine, or irregular heartbeat. Complete the full antibiotic course as prescribed.
No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. Say: "I take Selenium and Rifaximin — is that OK?"
Safe combination. Mineral absorption tip: take calcium and iron at separate times (they compete for absorption). Magnesium is best taken in the evening. Zinc pairs well with meals to prevent nausea. Vitamin C enhances iron absorption.
Selenium and Rifaximin are generally considered safe to use together based on current medical evidence. No adverse interactions have been reported.
Critical: Selenium can chelate with Rifaximin, forming insoluble complexes in the gut that dramatically reduce antibiotic absorption — potentially by 50-90%. Take the mineral at least 2 hours before or 4-6 hours after the antibiotic. This is especially important with tetracyclines and fluoroquinolones.
Monitor for altered effectiveness and side effects when combining Selenium with Rifaximin. Antibiotics can affect liver enzymes and alter the blood levels of other medications. Watch for: unusual nausea, vomiting, diarrhea (especially watery or bloody), stomach cramps, skin rash, dizziness, or signs the other medication is working differently than usual. When to seek emergency help: Severe allergic reaction (difficulty breathing, swelling of face/throat, hives), severe or persistent diarrhea (possible C. difficile infection), yellowing of skin or eyes, dark urine, or irregular heartbeat. Complete the full antibiotic course as prescribed.
Safe combination. Mineral absorption tip: take calcium and iron at separate times (they compete for absorption). Magnesium is best taken in the evening. Zinc pairs well with meals to prevent nausea. Vitamin C enhances iron absorption.
No urgent need to discuss, but always keep your doctor informed of your full supplement and medication list. Say: "I take Selenium and Rifaximin — is that OK?"
Or browse the full interaction database (121,000+ pairs).