MODERATE — Monitor Closely
🟡 USE CAUTION — Iron and Omeprazole may interact. Talk to your doctor before combining.
Evidence level: STRONG
Prilosec reduces stomach acid, but you need acid to absorb iron. Long-term PPI use can worsen iron deficiency.
PPIs reduce stomach acid needed for iron absorption. Long-term PPI use → iron deficiency.
Long-term use of Iron with Omeprazole may affect nutrient absorption over time. Consider periodic blood work to check key nutrient levels, and discuss supplementation with your doctor if needed.
Take Omeprazole 30 minutes before a meal — PPIs must be activated by acid pumps that turn on when you eat. Iron can be taken with the meal or at a separate time. PPIs significantly impair mineral absorption by reducing stomach acid. Use citrate forms (calcium citrate, magnesium citrate) which don't require acid for absorption. Take minerals with food.
Risk may increase with: older age, liver or kidney impairment, taking multiple medications, and higher doses of either substance.
Monitor for any new or unusual symptoms when starting this combination. Report changes to your healthcare provider.
Mention this combination at your next appointment. Ask: "Should I adjust timing or doses of Iron and Omeprazole?" Your doctor may want to monitor specific lab values.
PPIs alter stomach acid and can affect absorption of other substances. Consider H2 blockers (famotidine) as alternatives with fewer interactions. Supplement with magnesium and B12 during long-term PPI use.
Prilosec reduces stomach acid, but you need acid to absorb iron. Long-term PPI use can worsen iron deficiency.
Take Omeprazole 30 minutes before a meal — PPIs must be activated by acid pumps that turn on when you eat. Iron can be taken with the meal or at a separate time. PPIs significantly impair mineral absorption by reducing stomach acid. Use citrate forms (calcium citrate, magnesium citrate) which don't require acid for absorption. Take minerals with food.
Monitor for any new or unusual symptoms when starting this combination. Report changes to your healthcare provider.
PPIs alter stomach acid and can affect absorption of other substances. Consider H2 blockers (famotidine) as alternatives with fewer interactions. Supplement with magnesium and B12 during long-term PPI use.
Mention this combination at your next appointment. Ask: "Should I adjust timing or doses of Iron and Omeprazole?" Your doctor may want to monitor specific lab values.
Or browse the full interaction database (121,000+ pairs).