7.4 Drugs without Clinically Significant Interactions with Darunavir No dosage adjustments are recommended when darunavir/ritonavir is co-administered with the following medications: atazanavir, dolutegravir, efavirenz, etravirine, nevirapine, nucleoside reverse transcriptase inhibitors (abacavir, emtricitabine, emtricitabine/tenofovir alafenamide, lamivudine, stavudine, tenofovir disoproxil fumarate, zidovudine), pitavastatin, raltegravir, ranitidine or rilpivirine.
Source: FDA drug label - darunavir
7.4 Drugs without Clinically Significant Interactions with PREZCOBIX Clinically relevant drug-drug interactions have not been observed or are not anticipated with concomitant use of darunavir and cobicistat with rilpivirine, dolutegravir, raltegravir, abacavir, emtricitabine, emtricitabine/tenofovir alafenamide, tenofovir DF, lamivudine, stavudine, zidovudine, or acid modifying medications (antacids, H 2 -receptor antagonists, proton pump inhibitors).
Source: FDA drug label - darunavir ethanolate and cobicistat
7.2 Riociguat Coadministration with fixed-dose abacavir/dolutegravir/lamivudine resulted in increased riociguat exposure, which may increase the risk of riociguat adverse reactions [see Clinical Pharmacology (12.3) ].
Source: FDA drug label - abacavir
7.5 Drugs Without Clinically Significant Interactions with Efavirenz No dosage adjustment is recommended when efavirenz is given with the following: aluminum/magnesium hydroxide antacids, azithromycin, cetirizine, famotidine, fluconazole, lorazepam, nelfinavir, nucleoside reverse transcriptase inhibitors (abacavir, emtricitabine, lamivudine, stavudine, tenofovir disoproxil fumarate, zidovudine), paroxetine, and raltegravir.
Source: FDA drug label - efavirenz
No clinically relevant drug-drug interaction is expected when ZEPATIER is co-administered with abacavir, emtricitabine, entecavir, and lamivudine.
Source: FDA drug label - elbasvir and grazoprevir
Nucleoside Reverse Transcriptase Inhibitors: abacavir zidovudine ↓ abacavir ↓ zidovudine The clinical significance of this potential interaction is unknown.
Source: FDA drug label - lopinavir and ritonavir
Paradoxical Effects of Anti-Retroviral Agents on Methadone Concurrent use of certain protease inhibitors with CYP3A4 inhibitory activity, alone and in combination, such as abacavir, amprenavir, darunavir+ritonavir, efavirenz, nelfinavir, nevirapine, ritonavir, telaprevir, lopinavir+ritonavir, saquinavir+ritonavir, and tipranvir+ritonavir, has resulted in increased clearance or decreased plasma levels of methadone.
Source: FDA drug label - methadone hydrochloride
No clinically relevant drug-drug interaction is expected when EDURANT or EDURANT PED is coadministered with maraviroc, ribavirin or the NRTIs abacavir, emtricitabine, lamivudine, stavudine and zidovudine.
Source: FDA drug label - rilpivirine hydrochloride
Nucleoside Reverse Transcriptase Inhibitors: Abacavir ↓ Abacavir AUC by approximately 40% Clinical relevance of reduction in abacavir levels not established. Dose adjustment of abacavir cannot be recommended at this time.
Source: FDA drug label - tipranavir