Vai al contenuto

Interazioni tra farmaci

Nevirapine + St john's wort

Gravità: Controindicata

Nevirapine and St john's wort: contraindicated interaction.

Ultimo aggiornamento

Per operatori sanitari — solo a scopo di riferimento. Questa pagina è una sintesi breve, non è un parere medico e non sostituisce il RCP ufficiale né il giudizio clinico. Verificare sempre prima di prescrivere o dispensare.

Il contenuto clinico di questa pagina è disponibile solo in inglese.

Sintesi

St John's wort can substantially lower nevirapine concentrations, which may lead to virologic failure and resistance. Nevirapine's resistance barrier is low.

Cosa significa questa interazione in parole semplici

Nevirapine and St john's wort are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.

Livello di evidenza: Moderate

Perché avviene

St John's wort induces CYP3A4 and CYP2B6 and P-glycoprotein, increasing nevirapine clearance.

Cosa fare

Do not use together. If St John's wort was used, stop it and monitor HIV RNA, noting that enzyme induction fades over about two weeks.

Cosa chiedere al farmacista

  • Is there an alternative to one of these two medicines for me?
  • If both are essential, who is monitoring me and how often?
  • Which symptoms mean I should stop and seek help straight away?

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

Per gli utenti Pro+

Sblocca la pagina completa

Crei un account e avvii una prova di Pro+ per sbloccare le indicazioni complete sulla gestione di Nevirapine e St john's wort, le note aggiuntive, il dettaglio delle evidenze e il controllo delle interazioni per un'intera prescrizione.

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

Provi Pro+ gratis per 14 giorni sul web. Nessuna carta.

Domande frequenti

Can I take Nevirapine with St john's wort?

MediHelp rates the interaction as contraindicated. Nevirapine and St john's wort are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. St John's wort can substantially lower nevirapine concentrations, which may lead to virologic failure and resistance. Nevirapine's resistance barrier is low.

How serious is the interaction between Nevirapine and St john's wort?

MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not use together. If St John's wort was used, stop it and monitor HIV RNA, noting that enzyme induction fades over about two weeks.

What other medicines interact with Nevirapine?

MediHelp also lists interactions of Nevirapine with, for example, Elbasvir / grazoprevir, Ranolazine, Abemaciclib. The full list is on the Nevirapine page.

Monografie complete, posologie e verifica delle interazioni nell'app MediHelp

Apra il riferimento completo, verifichi le interazioni tra più farmaci e usi gli strumenti di posologia nell'app MediHelp.

Sfoglia dalla A alla Z · Interazioni tra farmaci

Scarica l'app Accedi