What herbs and supplements can interact with psyllium supplements?

Psyllium-containing products may delay gastric emptying time and reduce the absorption of some herbs, supplements, vitamins, or minerals. Absorption of calcium, iron, zinc, and vitamin B12 may also be affected. Other agents should be taken one hour before or a few hours after psyllium to avoid potential interactions.

Psyllium should be used cautiously with other laxatives, such as senna, because effects may be increased.

Psyllium and chitosan together may increase fat excretion in the stool.

Theoretically, psyllium may reduce the absorption of anticoagulant herbs and supplements. However, no effect on warfarin levels by co-administered psyllium was found in one study.

Taking psyllium with herbs and supplements that alter blood sugar may increase the risk of hypoglycemia (lowered blood sugar). People using other herbs or supplements that may alter blood sugar levels, such as bitter melon (Momordica charantia), should be monitored closely by their healthcare provider while using psyllium. Dosing adjustments may be necessary.

Psyllium may interact with herbs and supplements with antidepressant, anti-gout, anti-inflammatory, and diuretic activities.

You should read product labels, and discuss all therapies with a qualified healthcare provider. Natural Standard information does not constitute medical advice, diagnosis, or treatment.