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Interações medicamentosas

Cholestyramine + Liothyronine

Gravidade: Moderada

Cholestyramine and Liothyronine: moderate interaction.

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Para profissionais de saúde — apenas referência. Esta página é um resumo breve, não é aconselhamento médico nem substitui a bula oficial ou o julgamento clínico. Verifique sempre antes de prescrever ou dispensar.

O conteúdo clínico desta página está disponível apenas em inglês.

Resumo

Cholestyramine binds thyroid hormones in the gut and markedly reduces absorption of oral liothyronine. This can cause hypothyroid symptoms and raised TSH.

O que esta interação significa em palavras simples

Cholestyramine and Liothyronine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Cholestyramine belongs to Cardiovascular; Liothyronine belongs to Endocrine.

Nível de evidência: High

Por que acontece

Resin binding of liothyronine in the gastrointestinal tract reduces absorption and may interrupt enterohepatic recirculation.

O que fazer

Separate liothyronine from cholestyramine by at least 4 hours. Monitor TSH and adjust the thyroid dose if needed.

O que perguntar ao farmacêutico

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Perguntas frequentes

Can I take Cholestyramine with Liothyronine?

MediHelp rates the interaction as moderate. Cholestyramine and Liothyronine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Cholestyramine binds thyroid hormones in the gut and markedly reduces absorption of oral liothyronine. This can cause hypothyroid symptoms and raised TSH.

How serious is the interaction between Cholestyramine and Liothyronine?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Separate liothyronine from cholestyramine by at least 4 hours. Monitor TSH and adjust the thyroid dose if needed.

What other medicines interact with Cholestyramine?

MediHelp also lists interactions of Cholestyramine with, for example, Cholic acid, Deferasirox, Leflunomide. The full list is on the Cholestyramine page.

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