Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 12/9/2025

Management of Telogen Effluvium with Iron Deficiency

Initial Treatment Approach

  • The primary management of telogen effluvium is identifying and removing the triggering factor, followed by targeted nutritional supplementation when deficiencies are confirmed, with iron replacement being the most evidence-based intervention when iron deficiency is documented, as recommended by the American College of Physicians 1

Iron Replacement Therapy

  • For documented iron deficiency, oral iron supplementation with ferrous sulfate 200 mg once daily (65 mg elemental iron) is the first-line treatment, and alternative formulations like ferrous fumarate or ferrous gluconate are equally effective, according to the European Society of Gastrointestinal Endoscopy 1, 2
  • Iron supplementation should be continued for 3 months after hemoglobin normalization to replenish iron stores, with an expected hemoglobin rise of 2 g/dL after 3-4 weeks, as suggested by the American Gastroenterological Association 1, 2
  • To enhance absorption, iron should be taken with 250-500 mg ascorbic acid (vitamin C), and administered on an empty stomach when tolerated, or with meat protein if gastrointestinal side effects occur, as recommended by the European Society of Gastroenterology 1, 2, 3

Parenteral Iron Therapy

  • Parenteral iron is indicated when oral iron fails, with ferric carboxymaltose (Ferinject) 1000 mg over 15 minutes being the preferred option for convenience and safety, according to the American College of Physicians 1
  • Alternative parenteral iron options include iron sucrose 200 mg over 10 minutes, and labs should be rechecked 8-10 weeks post-infusion, as suggested by the European Society of Gastrointestinal Endoscopy 1, 4

Monitoring and Follow-Up

  • Short-term monitoring involves reassessing at 3-4 weeks to confirm hemoglobin response if iron deficiency was treated, and clinical improvement typically begins 3-6 months after trigger removal, as recommended by the American Society of Hematology 1, 2
  • Long-term monitoring involves checking hemoglobin and red cell indices every 3 months for the first year, then annually, and reinitiating iron supplementation if hemoglobin or MCV falls below normal, according to the European Society of Gastrointestinal Endoscopy 1, 2