Methimazole

🧮 Dose calculator

Hyperthyroidism · Regimen source: FDA Methimazole · Dosage and Administration

• • Every 8 hours. Maintenance 5–15 mg/day. FDA Methimazole · Dosage and Administration

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 Methimazole · Pregnancy

  “[See WARNINGS .] If methimazole tablets are used during the first trimester of pregnancy or if the patient becomes pregnant while taking this drug, the patient should be warned of the potential hazard to the fetus.”

• 🤱 BreastfeedingUse with caution

  Label: use with caution while breastfeeding; see the label text. FDA Methimazole · Nursing Mothers

  “Methimazole is present in breast milk.”

• 👶 ChildrenUse with caution

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

  “Because of postmarketing reports of severe liver injury in pediatric patients treated with propylthiouracil, methimazole is the preferred choice when an antithyroid drug is required for a pediatric patient [see DOSAGE AND ADMINISTRATION ] .”

• 👴 Older adultsNo data

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

• ⚥ Females & males of reproductive potentialNo data

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