Levothyroxine and calcium interaction: timing is everything

Home Healthc Nurse. 2004 May;22(5):338-9. doi: 10.1097/00004045-200405000-00015.

Abstract

Are you aware that clients taking levothyroxine (Levoxyl, Synthroid, Unithroid) should also be taking a calcium supplement and that the calcium supplement should be spaced at least 4 hours apart from levothyroxine?

Publication types

  • Review

MeSH terms

  • Calcium / administration & dosage*
  • Drug Administration Schedule
  • Drug Interactions
  • Home Care Services*
  • Humans
  • Hypothyroidism / diagnosis
  • Hypothyroidism / drug therapy*
  • Hypothyroidism / nursing*
  • Nursing Assessment / methods
  • Patient Education as Topic / methods
  • Thyroxine / administration & dosage*

Substances

  • Thyroxine
  • Calcium