Interacción de Elvitegravir, cobicistat, emtricitabina y tenofovir con Metadona
Elvitegravir, cobicistat, emtricitabina y tenofovir con Metadona: ambas etiquetas de prescripción advierten sobre esta combinación con el lenguaje más contundente, como una contraindicación, una advertencia en recuadro o la indicación de evitarla.
No combinar sin la orientación de un prescriptor. El lenguaje de la etiqueta que aparece a continuación es el más contundente que usa la FDA.
Qué dicen las etiquetas de la FDA
De la etiqueta de Metadona (METHADOSE) · vigente desde 2026-04-27
Interactions with Drugs Affecting Cytochrome P450 Isoenzymes The concomitant use of METHADOSE with all cytochrome P450 3A4, 2B6, 2C19, 2C9 or 2D6 inhibitors may result in an increase in methadone plasma concentrations, which could cause potentially fatal respiratory depression.
Concomitant use with CYP3A4, 2B6, 2C19, 2C9 or 2D6 inhibitors or discontinuation of concomitantly used CYP3A4, 2B6, 2C19, or 2C9 inducers can result in a fatal overdose of methadone.
…Cytochrome P450 3A4, 2B6, 2C19, 2C9, or 2D6 Inhibitors or Discontinuation of P450 3A4, 2B6, 2C19, or 2C9 Inducers Concomitant use of METHADOSE with CYP3A4, CYP2B6, CYP2C19, CYP2C9, or CYP2D6 inhibitors, may increase plasma concentrations of methadone, prolong opioid adverse reactions, and may cause potentially fatal respiratory depression, particularly when an inhibitor…
Similarly, discontinuation of concomitant CYP3A4, CYP2B6, CYP2C19, or CYP2C9 inducers in METHADOSE-treated patients may increase methadone plasma concentrations resulting in fatal respiratory depression.
If a CYP3A4, CYP2B6, CYP2C19, or CYP2C9 inducer is discontinued, consider methadone dosage reduction and monitor for signs of respiratory depression and sedation.
De la etiqueta de Elvitegravir, cobicistat, emtricitabina y tenofovir (Genvoya) · vigente desde 2025-02-03
…Lipid-modifying Agents: lomitapide, lovastatin, simvastatin Phosphodiesterase-5 (PDE-5) Inhibitor: sildenafil when administered as REVATIO ® for the treatment of pulmonary arterial hypertension Sedative/hypnotics: triazolam, orally administered midazolam Coadministration of GENVOYA is contraindicated with drugs that: Are highly dependent on CYP3A for clearance and for which…
Sedative/hypnotic: midazolam (oral) triazolam ↑ midazolam ↑ triazolam Coadministration with triazolam or orally administered midazolam is contraindicated due to potential for serious and/or life-threatening reactions such as prolonged or increased sedation or respiratory depression.
Dosage reduction for midazolam should be considered, especially if more than a single dose of midazolam is administered. buspirone zolpidem With other sedative/hypnotics, dose reduction may be necessary and clinical monitoring is recommended.
Other benzodiazepines: e.g., parenterally administered midazolam clorazepate diazepam estazolam flurazepam ↑ sedatives/hypnotics Triazolam and orally administered midazolam are extensively metabolized by CYP3A.
…GENVOYA Based on drug interaction studies conducted with the components of GENVOYA, no clinically significant drug interactions have been observed or are expected when GENVOYA is combined with the following drugs: famciclovir, famotidine, ledipasvir, methadone, omeprazole, prasugrel (active metabolite), sertraline, sofosbuvir, velpatasvir, and voxilaprevir.
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Abrir en el verificadorNo es un consejo médico. Interaction Checker cita el texto de las etiquetas de la FDA y las hojas informativas de los NIH. Que una interacción sea importante en su caso depende de las dosis, el momento de las tomas, la función renal y hepática y otras afecciones. Confírmelo con un farmacéutico o un prescriptor.