Interações medicamentosas
Armodafinil + Ethinylestradiol
Gravidade: Grave
Armodafinil and Ethinylestradiol: major interaction.
Última atualização
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.
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Resumo
Armodafinil can lower ethinylestradiol exposure and may reduce the effectiveness of hormonal contraceptives, with a risk of unintended pregnancy. This effect may persist for about a month after armodafinil is stopped.
O que esta interação significa em palavras simples
Armodafinil and Ethinylestradiol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Por que acontece
Armodafinil induces CYP3A4, increasing the metabolism of ethinylestradiol.
O que fazer
Advise an additional or alternative non-hormonal contraceptive method during armodafinil therapy and for one month after stopping it.
O que perguntar ao farmacêutico
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Outras interações de Armodafinil
Perguntas frequentes
Can I take Armodafinil with Ethinylestradiol?
MediHelp rates the interaction as major. Armodafinil and Ethinylestradiol can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Armodafinil can lower ethinylestradiol exposure and may reduce the effectiveness of hormonal contraceptives, with a risk of unintended pregnancy. This effect may persist for about a month after armodafinil is stopped.
How serious is the interaction between Armodafinil and Ethinylestradiol?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise an additional or alternative non-hormonal contraceptive method during armodafinil therapy and for one month after stopping it.
What other medicines interact with Armodafinil?
MediHelp also lists interactions of Armodafinil with, for example, Avapritinib, Cyclosporine, Elacestrant. The full list is on the Armodafinil page.
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