Interacción de Deflazacort con Lopinavir y ritonavir
Deflazacort con Lopinavir y ritonavir: 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 Deflazacort (EMFLAZA) · vigente desde 2025-11-13
Avoid use of moderate or strong CYP3A4 inducers with EMFLAZA, as they may reduce efficacy ( 7.1 )
Avoid concomitant use of strong (e.g., efavirenz) or moderate (e.g., carbamazepine, phenytoin) CYP3A4 inducers with EMFLAZA [see Dosage and Administration ( 2.5 ) and Clinical Pharmacology ( 12.3 )] .
Moderate or strong CYP3A4 inhibitors: Give one third of the recommended dosage of EMFLAZA ( 7.1 )
Co-administration of deflazacort with clarithromycin, a strong CYP3A4 inhibitor, increased total exposure to 21-desDFZ by about 3-fold.
Therefore, give one third the recommended dosage of EMFLAZA when moderate or strong CYP3A4 inhibitors (e.g., clarithromycin, fluconazole, diltiazem, verapamil, grapefruit juice) are used concomitantly with EMFLAZA [see Dosage and Administration ( 2.5 ) and Clinical Pharmacology ( 12.3 )] .
De la etiqueta de Lopinavir y ritonavir (Kaletra) · vigente desde 2026-07-23
…Nasal/Ophthalmic Corticosteroids: e.g., betamethasone budesonide ciclesonide dexamethasone fluticasone methylprednisolone mometasone prednisone triamcinolone ↓ lopinavir ↑ glucocorticoids Coadministration with oral dexamethasone or other systemic corticosteroids that induce CYP3A may result in loss of therapeutic effect and development of resistance to lopinavir.
Consider alternative corticosteroids.
Coadministration with corticosteroids whose exposures are significantly increased by strong CYP3A inhibitors can increase the risk for Cushing’s syndrome and adrenal suppression.
Alternative corticosteroids including beclomethasone and prednisolone (whose PK and/or PD are less affected by strong CYP3A inhibitors relative to other studied steroids) should be considered, particularly for long-term use. * see Clinical Pharmacology ( 12.3 ) for magnitude of interaction. # refers to interaction with apalutamide.
Contraceptive: ethinyl estradiol* ↓ ethinyl estradiol Because contraceptive steroid concentrations may be altered when KALETRA is co-administered with oral contraceptives or with the contraceptive patch, alternative methods of nonhormonal contraception are recommended.
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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.