Référentiel des médicaments
Tiratricol
Tiratricol is a medicine in the class endocrine.
- Classe médicamenteuse: Endocrine
Dernière mise à jour Sources: EMA SmPC
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Le contenu clinique de cette page n'est disponible qu'en anglais.
L'essentiel
- Classe médicamenteuse
- Endocrine
- Code ATC
- H03AA04
- Interactions connues
- 13 (Majeure: 1 · Modérée: 12)
- Noms commerciaux
- 1
- Pays et marchés
- 1
Mécanisme d'action
Tiratricol is a naturally circulating metabolite of T3 that binds with high affinity to thyroid hormone receptors TRα and TRβ and has T3-like effects. It can enter MCT8-dependent cells without a functioning MCT8 transporter, so it can replace T3 in MCT8-dependent tissues.
Posologie adulte habituelle (résumé de la notice)
Peripheral thyrotoxicosis in MCT8 deficiency, body weight 10 kg or above (adults, adolescents, children, infants): start 350 micrograms daily orally or via feeding tube in 1 to 3 doses; increase by 350 micrograms every two weeks to maintenance; target serum T3 below midpoint of normal range for age.
Grossesse et allaitement
- Grossesse
- Unsafe Contraindicated in pregnancy (EU): it crosses the placenta and animal studies showed reproductive toxicity. Women who could become pregnant must use effective contraception. Used for MCT8 deficiency, which almost only affects males.
- Allaitement
- Unknown Not known if it passes into milk; no LactMed record. EU label: risk cannot be excluded; decide whether to stop breastfeeding or the drug. e-lactancia: limited compatibility (a thyroid hormone analogue); prefer a safer option or stop breastfeeding.
Effets indésirables signalés
- Hyperhidrosis
- Diarrhoea
- Irritability
- Anxiety
- Nightmares
Contre-indications
- Hypersensitivity to the active substance or any excipient.
- Hyperthyroidism for reasons other than MCT8 deficiency (e.g. Graves' disease).
- Pregnancy.
Précautions particulières
- Hypermetabolic signs and symptoms (hyperhidrosis, irritability, anxiety, insomnia, tachycardia, diarrhoea etc.) may occur at initiation or during titration; reduce dose if not resolved within 2 weeks.
- Use caution during titration in patients with cardiac disease.
- Tiratricol cross-reacts with T3 in immunoassays, giving unreliable results; LC/MS/MS is recommended.
Informez votre pharmacien ou votre médecin en cas de grossesse ou d'allaitement, de maladie rénale ou hépatique, d'allergies, ainsi que de tout autre médicament ou complément que vous prenez.
Principales interactions (13)
- Levothyroxine + Tiratricol Major
- Calcium + Tiratricol Moderate
- Carbamazepine + Tiratricol Moderate
- Carbimazole + Tiratricol Moderate
- Charcoal + Tiratricol Moderate
- Chloroquine + Tiratricol Moderate
- Cholestyramine + Tiratricol Moderate
- Iron + Tiratricol Moderate
- Orlistat + Tiratricol Moderate
- Phenytoin + Tiratricol Moderate
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- Dosing by age, kidney and liver function, and further dose lines
- Renal and hepatic dose adjustments
- Paediatric dosing
- How to give it
- Pharmacokinetics
- Patient counselling points
- IV preparation and dilution
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Questions fréquentes
What is Tiratricol used for?
Tiratricol is a medicine in the class endocrine.
What side effects have been reported with Tiratricol?
Hyperhidrosis, Diarrhoea, Irritability, Anxiety, Nightmares.
Can Tiratricol be taken in pregnancy or while breastfeeding?
Pregnancy: Unsafe. Contraindicated in pregnancy (EU): it crosses the placenta and animal studies showed reproductive toxicity. Women who could become pregnant must use effective contraception. Used for MCT8 deficiency, which almost only affects males. Breastfeeding: Unknown. Not known if it passes into milk; no LactMed record. EU label: risk cannot be excluded; decide whether to stop breastfeeding or the drug. e-lactancia: limited compatibility (a thyroid hormone analogue); prefer a safer option or stop breastfeeding.
What does Tiratricol interact with?
MediHelp lists 13 known interactions for Tiratricol. Major: 1 · Moderate: 12. The most serious include Levothyroxine, Calcium, Carbamazepine.
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