Mild or Moderate CYP3A Inhibitors: Clotrimazole, antibiotics (e.g., verapamil, diltiazem, nifedipine, nicardipine), amiodarone, danazol, ethinyl estradiol, cimetidine, lansoprazole and omeprazole May increase tacrolimus whole blood trough concentrations and increase the risk of serious adverse reactions (e.g., neurotoxicity, QT prolongation) [see Warnings and Precautions ( 5.7 , 5.10 , 5.11 )] .
Source: FDA drug label - tacrolimus extended-release capsules
felodipine, nifedipine, nicardipine, and verapamil ↑ calcium channel blocker Caution is warranted.
Source: FDA drug label - atazanavir
felodipine, nifedipine, nicardipine, and verapamil ↑ calcium channel blocker Caution is warranted.
Source: FDA drug label - atazanavir sulfate
Calcium Channel Blockers: e.g., amlodipine diltiazem felodipine nicardipine nifedipine verapamil ↑ calcium channel blockers Caution is warranted and clinical monitoring is recommended upon coadministration of calcium channel blockers with GENVOYA.
Source: FDA drug label - elvitegravir, cobicistat, emtricitabine, and tenofovir alafenamide
7.10 Other Possible Interactions Moderate inhibitors of CYP3A4 and P-gp may increase everolimus blood concentrations (e.g., fluconazole; macrolide antibiotics; nicardipine, diltiazem; nelfinavir, indinavir, amprenavir).
Source: FDA drug label - everolimus
7.10 Other Possible Interactions Moderate inhibitors of CYP3A4 and P-gp may increase everolimus blood concentrations (e.g., fluconazole; macrolide antibiotics; nicardipine, diltiazem; nelfinavir, indinavir, amprenavir).
Source: FDA drug label - everolimus tablets
Calcium channel blockers: Diltiazem, felodipine, nifedipine, nicardipine, nimodipine, verapamil, amlodipine, nisoldipine, isradipine ↑ Calcium channel blockers Use with caution.
Source: FDA drug label - fosamprenavir calcium
Examples Bosutinib, cisapride, clarithromycin b, cobimetinib, crizotinib, disopyramide, dofetilide, dronedarone, eliglustat (in patients that are poor or intermediate metabolizers of CYP2D6 and in patients taking strong or moderate CYP2D6 inhibitors), ivabradine, methadone, midostaurin, nicardipine, pimozide, quinidine, and ranolazine.
Source: FDA drug label - levoketoconazole
Examples: Amlodipine, clevidipine, felodipine, isradipine, nicardipine, nifedipine, nimodipine, and nisoldipine Drugs that May Induce Magnesium Loss Clinical Impact: Reduced magnesium concentrations may impact efficacy Intervention: Monitor magnesium concentrations frequently and adjust the Magnesium Sulfate in 5% Dextrose Injection dosage to maintain concentrations in the target range [see Dosage and Administration (2) ] .
Source: FDA drug label - magnesium sulfate heptahydrate
Examples: • Amlodipine, clevidipine, felodipine, isradipine, nicardipine, nifedipine, nimodipine, and nisoldipine Drugs that May Induce Magnesium Loss Clinical Impact: • Reduced magnesium concentrations may impact efficacy Intervention: • Monitor magnesium concentrations frequently and adjust the Magnesium Sulfate in 5% Dextrose Injection dosage to maintain concentrations in the target range [see Dosage and Administration (2) ] .
Source: FDA drug label - magnesium sulfate
Calcium channel blockers amlodipine, diltiazem, felodipine, nicardipine, nifedipine, verapamil ↑ calcium channel blocker Caution is warranted and clinical monitoring of patients is recommended.
Source: FDA drug label - nirmatrelvir and ritonavir
Data from in vitro studies of benzodiazepines other than alprazolam suggest a possible drug interaction for the following: ergotamine, cyclosporine, amiodarone, nicardipine, and nifedipine.
Source: FDA drug label - alprazolam
Data from in vitro studies of benzodiazepines other than alprazolam suggest a possible drug interaction between benzodiazepines and the following: ergotamine, cyclosporine, amiodarone, nicardipine, and nifedipine [see Warnings and Precautions (5.8)].
Source: FDA drug label - alprazolam odt c-iv
Drugs That Increase Cyclosporine Concentrations Calcium Channel Blockers Antifungals Antibiotics Glucocorticoids Other Drugs diltiazem fluconazole azithromycin methylprednisolone Allopurinol nicardipine itraconazole clarithromycin Amiodarone verapamil ketoconazole erythromycin Bromocriptine voriconazole quinupristin/ dalfopristin colchicine danazol imatinib metoclopramide nefazodone oral contraceptives HIV Protease inhibitors The HIV protease inhibitors (e.g., indinavir, nelfinavir, ritonavir, and saquinavir) are known to inhibit cytochrome P-450 3A and thus could potentially increase the concentrations of cyclosporine, however no formal studies of the interaction are available.
Source: FDA drug label - cyclosporine
Calcium Channel Blockers : amlodipine, diltiazem, felodipine, nicardipine, nifedipine, verapamil ↑ calcium channel blockers Clinical monitoring of patients is recommended.
Source: FDA drug label - darunavir
Calcium Channel Blockers: amlodipine, diltiazem, felodipine, nicardipine, nifedipine, verapamil ↑ calcium channel blockers Clinical monitoring of patients is recommended.
Source: FDA drug label - darunavir 600 mg
Others (e.g., felodipine, nicardipine, nifedipine, verapamil) ↓ calcium channel blocker When co-administered with efavirenz, dosage adjustment of calcium channels blocker may be needed and should be guided by clinical response (refer to the full prescribing information for the calcium channel blocker).
Source: FDA drug label - efavirenz
Others e.g., felodipine nicardipine nifedipine verapamil ↓ calcium channel blocker No data are available on the potential interactions of EFV with other calcium channel blockers that are substrates of CYP3A.
Source: FDA drug label - efavirenz, emtricitabine and tenofovir disoproxil fumarate
Calcium channel blockers: Diltiazem Others (e.g., felodipine, nicardipine, nifedipine, verapamil) ↓diltiazem* ↓desacetyl diltiazem* ↓N-monodesmethyldiltiazem* ↓calcium channel blocker Diltiazem dose adjustments should be guided by clinical response (refer to the full prescribing information for diltiazem).
Source: FDA drug label - efavirenz, lamivudine and tenofovir disoproxil fumarate
When therapeutic concentrations of furosemide, propranolol, dipyridamole, warfarin, quinidine or naproxen were added to human plasma ( in vitro ), the plasma protein binding of nicardipine hydrochloride was not altered.
Source: FDA drug label - nicardipine
felodipine, nifedipine, nicardipine ↑ dihydropyridine calcium channel blockers Clinical monitoring of patients is recommended and a dose reduction of the dihydropyridine calcium channel blocker may be considered.
Source: FDA drug label - lopinavir and ritonavir
Drug Interactions Beta Blockers In controlled clinical studies, adrenergic beta-receptor blockers have been frequently administered concomitantly with nicardipine hydrochloride capsules. Cimetidine Cimetidine increases nicardipine hydrochloride capsules plasma levels. Nicardipine hydrochloride capsules usually do not alter the plasma levels of digoxin; however, serum digoxin levels should be evaluated after concomitant therapy with nicardipine hydrochloride capsules are initiated.
Source: FDA drug label - nicardipine hydrochloride
7.11 Calcium Channel Blockers Metabolized by CYP3A4 Posaconazole may increase the plasma concentrations of calcium channel blockers metabolized by CYP3A4 (e.g., verapamil, diltiazem, nifedipine, nicardipine, felodipine).
Source: FDA drug label - posaconazole
7.11 Calcium Channel Blockers Metabolized by CYP3A4 Posaconazole may increase the plasma concentrations of calcium channel blockers metabolized by CYP3A4 (e.g., verapamil, diltiazem, nifedipine, nicardipine, felodipine).
Source: FDA drug label - posaconazole delayed-release
When therapeutic concentrations of furosemide, propranolol, dipyridamole, warfarin, quinidine or naproxen were added to human plasma ( in vitro ), the plasma protein binding of nicardipine hydrochloride was not altered.
Source: FDA drug label - nicardipine
Calcium Channel Blockers The mean C max and AUC of propranolol are increased, respectively, by 50% and 30% by co‑administration of nisoldipine and by 80% and 47%, by co‑administration of nicardipine. Calcium Channel Blockers The mean C max and AUC of propranolol are increased, respectively, by 50% and 30% by co‑administration of nisoldipine and by 80% and 47%, by co‑administration of nicardipine. Calcium Channel Blockers The mean C max and AUC of propranolol are increased, respectively, by 50% and 30% by co‑administration of nisoldipine and by 80% and 47%, by co‑administration of nicardipine.
Source: FDA drug label - propranolol hydrochloride
Interactions with other dihydropyridine calcium channel blockers have not been reported, but these agents (including felodipine, nicardipine, and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated.
Source: FDA drug label - quinidine gluconate
Interactions with other dihydropyridine calcium-channel blockers have not been reported, but these agents (including felodipine, nicardipine , and nimodipine ) are all dependent upon P450 IIIA4 for metabolism, so similar interactions with quinidine should be anticipated.
Source: FDA drug label - quinidine sulfate tablet
Drugs that could increase sirolimus blood concentrations: Bromocriptine, cimetidine, cisapride, clotrimazole, danazol, diltiazem, fluconazole, letermovir, protease inhibitors (e.g., HIV and hepatitis C that include drugs such as ritonavir, indinavir, boceprevir, and telaprevir), metoclopramide, nicardipine, troleandomycin, verapamil Drugs and other agents that could decrease sirolimus concentrations: Carbamazepine, phenobarbital, phenytoin, rifapentine, St.
Source: FDA drug label - sirolimus
7.5 Calcium Channel Blockers Verapamil, diltiazem, nifedipine, and nicardipine inhibit CYP3A metabolism of tacrolimus and may increase tacrolimus whole blood concentrations.
Source: FDA drug label - tacrolimus
Diltiazem Felodipine Nicardipine Nisoldipine Verapamil ↕ Diltiazem ↑ Felodipine (CYP3A substrate but not P-gp substrate) ↕ Nicardipine ↕ Nisoldipine (CYP3A substrate but not clear whether it is a P-gp substrate) ↕ Verapamil Disulfiram/Metronidazole Combination with TPV/ritonavir not studied APTIVUS capsules contain alcohol that can produce disulfiram-like reactions when co-administered with disulfiram or other drugs which produce this reaction (e.g., metronidazole).
Source: FDA drug label - tipranavir
Data from in vitro studies of benzodiazepines other than triazolam suggest a possible drug interaction with triazolam for the following: ergotamine, cyclosporine, amiodarone, nicardipine, and nifedipine.
Source: FDA drug label - triazolam