رفتن به محتوا

تداخل‌های دارویی

Estradiol + Fosphenytoin

شدت: شدید

Estradiol and Fosphenytoin: major interaction.

آخرین به‌روزرسانی

ویژه کادر درمان — فقط جهت مرجع. این صفحه خلاصه‌ای کوتاه است، توصیه پزشکی نیست و جایگزین بروشور رسمی یا قضاوت بالینی نمی‌شود. پیش از تجویز یا تحویل دارو همیشه بررسی کنید.

محتوای بالینی این صفحه فقط به زبان انگلیسی موجود است.

خلاصه

Phenytoin, the active metabolite of fosphenytoin, is a strong enzyme inducer that increases estradiol clearance and lowers its levels. This can cause loss of efficacy and breakthrough bleeding, and contraceptive failure has been reported with hormonal products.

معنای این تداخل به زبان ساده

Estradiol and Fosphenytoin 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.

Estradiol belongs to Endocrine; Fosphenytoin belongs to Central Nervous System.

سطح شواهد: Moderate

چرا رخ می‌دهد

Induction of CYP3A4 and possibly P-glycoprotein by phenytoin, increasing estradiol metabolism.

اقدام لازم

Use a non-hormonal or alternative contraceptive method when contraception is needed. For menopausal therapy, monitor for reduced effect and increase the estradiol dose if required.

از داروساز چه بپرسید

  • 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?

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

ویژه اعضای Pro+

باز کردن کل صفحه

یک حساب بسازید و دوره آزمایشی Pro+ را شروع کنید تا توصیه‌های کامل مدیریت Estradiol و Fosphenytoin، یادداشت‌های تکمیلی، جزئیات شواهد و بررسی‌کننده تداخل برای کل نسخه را باز کنید.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Pro+ را ۱۴ روز رایگان در وب امتحان کنید. بدون نیاز به کارت.

پرسش‌های متداول

Can I take Estradiol with Fosphenytoin?

MediHelp rates the interaction as major. Estradiol and Fosphenytoin 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. Phenytoin, the active metabolite of fosphenytoin, is a strong enzyme inducer that increases estradiol clearance and lowers its levels. This can cause loss of efficacy and breakthrough bleeding, and contraceptive failure has been reported with hormonal products.

How serious is the interaction between Estradiol and Fosphenytoin?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use a non-hormonal or alternative contraceptive method when contraception is needed. For menopausal therapy, monitor for reduced effect and increase the estradiol dose if required.

What other medicines interact with Estradiol?

MediHelp also lists interactions of Estradiol with, for example, Anastrozole, Fezolinetant, Ospemifene. The full list is on the Estradiol page.

تک‌نگاری کامل، دوزاژ و بررسی تداخل دارویی در برنامه MediHelp

مرجع کامل را باز کنید، تداخل چند دارو را بررسی کنید و از ابزارهای دوز در برنامه MediHelp استفاده کنید.

مرور از A تا Z · تداخل‌های دارویی

دریافت برنامه ورود