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Interazioni tra farmaci

Carbamazepine + Thalidomide

Gravità: Maggiore

Carbamazepine and Thalidomide: major interaction.

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Sintesi

Carbamazepine is an enzyme inducer that lowers hormonal contraceptive concentrations and can result in breakthrough ovulation. With thalidomide, contraceptive failure risks severe fetal malformations.

Cosa significa questa interazione in parole semplici

Carbamazepine and Thalidomide 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.

Carbamazepine belongs to Central Nervous System; Thalidomide belongs to Miscellaneous.

Livello di evidenza: High

Perché avviene

CYP3A4 induction by carbamazepine accelerates metabolism of contraceptive hormones.

Cosa fare

Do not rely on hormonal contraceptives; use a copper IUD or other non-hormonal highly effective method with a barrier method during and after carbamazepine.

Cosa chiedere al farmacista

  • 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.

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Domande frequenti

Can I take Carbamazepine with Thalidomide?

MediHelp rates the interaction as major. Carbamazepine and Thalidomide 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. Carbamazepine is an enzyme inducer that lowers hormonal contraceptive concentrations and can result in breakthrough ovulation. With thalidomide, contraceptive failure risks severe fetal malformations.

How serious is the interaction between Carbamazepine and Thalidomide?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not rely on hormonal contraceptives; use a copper IUD or other non-hormonal highly effective method with a barrier method during and after carbamazepine.

What other medicines interact with Thalidomide?

MediHelp also lists interactions of Thalidomide with, for example, Bortezomib, Griseofulvin, Modafinil. The full list is on the Thalidomide page.

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