Antiretroviral drugs
As part of a clinical study of Phase 3, Elpida was used as part of an integrated Apt with a fixed combination of 2 NRTIs - tenofovir and emtricitabine. This combination of drugs was well tolerated by patients.
In the clinical study on the evaluation of inter-drug interaction, the use of Elpida in combination with HIV protease inhibitors darunavir and ritonavir, as well as the integrase inhibitor raltegravir, has been studied. In general, joint taking of drugs was well tolerated. Changes in pharmacokinetic parameters and drug exposure are insignificant and do not require a change in the standard dosage regimen of these drugs. The administration of atazanavir after completion of therapy with Elpida in another clinical study led to the development of severe adverse reactions from the gastrointestinal tract (nausea, vomiting),specific for atazanavir.
Other medications
The drug Elpida induces the activity of isoenzymes CYP2B6 and CYP3A4 and can reduce the concentration in the plasma and, consequently, reduce the activity of drugs that are substrates of these isoenzymes. Joint use of these drugs should be done with caution.
Substrates of isoenzymes CYP2B6 and CYP3A4, whose activity can be reduced by joint admission with the drug Elpida
Substrates CYP2B6 and CYP3A4:
Immunosuppressors (ciclosporin, tacrolimus, sirolimus).
Chemotherapeutic drugs (docetaxel, tamoxifen, paclitaxel, cyclophosphamide, doxorubicin, erlotinib, etoposide, ifosfamide, teniposide, vinblastine, vincristine, vindesine, imatinib, sorafenib, sunitinib, vemurafenib, tessirolimus, anastrozole, genfatinib).
Azole antifungal drugs (ketoconazole, itraconazole).
Macrolides (clarithromycin, erythromycin, telithromycin; except for azithromycin). Tricyclic antidepressants (amitriptyline, clomipramine, imipramine, cyclobenzaprine).
Selective serotonin reuptake inhibitors (citalopram, norfluoxetine, sertraline).
Other antidepressants (mirtazapine, nefazodone, reboxetine, venlafaxine, trazodone). Antipsychotics (haloperidol, aripiprazole, risperidone, ziprasidone, pimozide).
Opioid analgesics (alfentanil, buprenorphine, codeine, fentanyl, hydrocodone, methadone, levacetylmetadol, tramadol).
Benzodiazepines (alprosolam, midazolam, triazolam, diazepam).
Sleeping Pills (zopiclone, zaleplon, zolpidem).
Statins (atorvastatin, lovastatin, simvastatin, cerivastatin; except pravastatin and rosuvastatin).
Calcium channel blockers (diltiazem, felodipine, nifedipine, verapamil, amlodipine, lercanidipine, nitrendipine, nisoldipine, bepridil).
Antiarrhythmics (amiodarone, droperedon, quinidine).
Inhibitors of phosphodiesterase-5 (sildenafil, tadalafil).
Agonists and antagonists of sex hormones (finasteride, estradiol, progesterone, ethinyl estradiol, testosterone, toremifene, bicalutamide).
H1-receptor antagonists (terfenadine, astemizole, chlorphenamine).
HIV protease inhibitors (indinavir, ritonavir, saquinavir, nelfinavir).
Some glucocorticosteroids (budesonide, hydrocortisone, dexamethasone).
Other Substrates CYP2B6:
Bupropion, valproic acid, methoxetamine, propofol, efavirenz.
Other Substrates CYP3A4:
Aprepitant, buspirone, warfarin, dapsone, domperidone, donepezil, caffeine, clopidogrel, lidocaine, montelukast, nateglinide, nevirapine, omeprazole, ondansetron, propranolol, salmeterol, cisapride, eplerenone, ergot alkaloids (ergotamine, dihydroergotamine, ergonovin, methylergonovine).