Liothyronine (T3)

🧮 Dose calculator

Hypothyroidism · Regimen source: FDA Liothyronine · 2.2

• • Increase by 25 mcg every 1–2 weeks by TSH. Elderly or cardiac patients: start 5 mcg. FDA Liothyronine · 2.2

Enter age (weight is optional for this regimen).

👥 Special populations

• 🤰 PregnancyUse with caution

  Label states no clear risk or has limited data; use only if needed, under medical advice. FDA Liothyronine · 8.1

  “Risk Summary Experience with liothyronine use in pregnant women, including data from post-marketing studies, have not reported increased rates of major birth defects or miscarriages (see Data).”

• 🤱 BreastfeedingUse with caution

  Label: use with caution while breastfeeding; see the label text. FDA Liothyronine · 8.2

  “Risk Summary Limited published studies report that liothyronine is present in human milk.”

• 👶 ChildrenUse with caution

  The label has conditions, age limits or notes for children; the label sentence is quoted below. FDA Liothyronine · 8.4

  “The initial dose of liothyronine sodium tablets varies with age and body weight.”

• 👴 Older adultsUse with caution

  Label: use with caution in older adults, usually starting at the low end of the dose range. FDA Liothyronine · 8.5

  “… ronine sodium tablets at less than the full replacement dose [see Dosage and Administration ( 2.3 ) and Warnings and Precautions ( 5.1 )] .”

• ⚥ Females & males of reproductive potentialNo data

  The source for this drug has no section for this group.