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Possible Drug Interactions With Fiber Supplements

When taken at the same time as medications, fiber supplements can affect the absorption of certain drugs:

How to Get the Most From Fiber Supplements

These guidelines can help you avoid side effects and interference with drug and nutrient absorption when you take fiber supplements:

  • Check with your doctor before starting a fiber supplement.
  • Gradually increase the amount of fiber you take each day.
  • Drink plenty of liquids -- about 64 ounces daily – to avoid discomfort.
  • Spread fiber intake throughout the day.
  • Take fiber supplements separately from medication; take medications at least one hour before fiber supplements or two hours after fiber supplements.

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