Mayo Clinic Care Network Content
Articles

Flaxseed and flaxseed oil

Interactions

Possible interactions include:

  • Anticoagulant and anti-platelet drugs, herbs and supplements. These types of drugs, herbs and supplements reduce blood clotting. Flaxseed oil also might decrease blood clotting. It's possible that taking flaxseed oil might increase the risk of bleeding.
  • Blood pressure drugs, herbs and supplements. Flaxseed oil might lower blood pressure. Taking flaxseed oil with drugs, herbs and supplements that lower blood pressure might lower blood pressure too much.
  • Diabetes drugs. Flaxseed might lower blood sugar levels. Taking flaxseed with diabetes drugs or herbs or supplements with hypoglycemic potential might lower blood sugar too much.
  • Estrogens. Flaxseed might have an anti-estrogen effect. Taking flaxseed might decrease the effects of oral contraceptive drugs and estrogen replacement therapy.
  • Oral drugs. Taking flaxseed might decrease absorption of oral drugs. Consider taking oral drugs and flaxseed an hour or two apart.