Interações medicamentosas
Drospirenone + Fosamprenavir
Gravidade: Grave
Drospirenone and Fosamprenavir: 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.
O conteúdo clínico desta página está disponível apenas em inglês.
Resumo
Fosamprenavir (as amprenavir) alters hormonal contraceptive exposure and can reduce amprenavir levels; combining may compromise contraceptive efficacy and antiretroviral exposure. Hormonal contraceptive concentrations are changed unpredictably, and drospirenone may raise potassium.
O que esta interação significa em palavras simples
Drospirenone and Fosamprenavir 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
Fosamprenavir/ritonavir modulates CYP3A4 and other enzymes, altering metabolism of the contraceptive hormones.
O que fazer
Avoid hormonal contraceptives with fosamprenavir where possible and use non-hormonal or alternative methods. If used, monitor potassium and contraceptive efficacy.
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?
Para assinantes do Pro+
Desbloqueie a página completa
Crie uma conta e comece um teste do Pro+ para desbloquear a orientação completa de conduta para Drospirenone e Fosamprenavir, as notas adicionais, os detalhes da evidência e o verificador de interações para uma prescrição completa.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Experimente o Pro+ grátis por 14 dias na web. Sem cartão.
Outras interações de Drospirenone
Perguntas frequentes
Can I take Drospirenone with Fosamprenavir?
MediHelp rates the interaction as major. Drospirenone and Fosamprenavir 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. Fosamprenavir (as amprenavir) alters hormonal contraceptive exposure and can reduce amprenavir levels; combining may compromise contraceptive efficacy and antiretroviral exposure. Hormonal contraceptive concentrations are changed unpredictably, and drospirenone may raise potassium.
How serious is the interaction between Drospirenone and Fosamprenavir?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid hormonal contraceptives with fosamprenavir where possible and use non-hormonal or alternative methods. If used, monitor potassium and contraceptive efficacy.
What other medicines interact with Drospirenone?
MediHelp also lists interactions of Drospirenone with, for example, Belzutifan, Bosentan, Carbamazepine. The full list is on the Drospirenone page.
Monografias completas, posologia e verificador de interações no app MediHelp
Abra a referência completa, verifique interações entre vários medicamentos e use as ferramentas de posologia no app MediHelp.
