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Interações medicamentosas

Alendronate + Calcium

Gravidade: Moderada

Alendronate and Calcium: 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

Oral calcium binds alendronate in the gut and markedly reduces its absorption. This can make the bisphosphonate less effective for osteoporosis.

O que esta interação significa em palavras simples

Alendronate and Calcium 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.

Alendronate belongs to Musculoskeletal; Calcium belongs to Gastrointestinal Tract.

Nível de evidência: High

Por que acontece

Chelation of alendronate by calcium cations in the gastrointestinal tract reduces absorption.

O que fazer

Take alendronate first with plain water on an empty stomach and wait at least 30 minutes before any calcium, food or other drinks.

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 Alendronate with Calcium?

MediHelp rates the interaction as moderate. Alendronate and Calcium 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. Oral calcium binds alendronate in the gut and markedly reduces its absorption. This can make the bisphosphonate less effective for osteoporosis.

How serious is the interaction between Alendronate and Calcium?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Take alendronate first with plain water on an empty stomach and wait at least 30 minutes before any calcium, food or other drinks.

What other medicines interact with Calcium?

MediHelp also lists interactions of Calcium with, for example, Ceftriaxone, Acalabrutinib, Atazanavir. The full list is on the Calcium page.

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