Erythromycin Diltiazem

Certain medications (e.g., cimetidine, diltiazem, erythromycin, fluoxetine, fluvoxamine, isoniazid, itraconazole, ketoconazole, nefazodone, propoxyphene, and verapamil) added to carbamazepine therapy may cause carbamazepine toxicity. 

Drugs that may affect HMG-CoA reductase inhibitors include alcohol, amiodarone, antacids, azole antifungals, bile acid sequestrants, cimetidine, cyclosporine, diltiazem, erythromycin, gemfibrozil, isradipine, nefazodone, niacin, nicotinic acid, omeprazole, phenytoin, propranolol, protease inhibitors, ranitidine, rifampin, St. John s wort, and verapamil. 

Drugs that can increase carbamazepine serum levels include cimetidine, danazol, diltiazem, erythromycin, felbamate, clarithromycin, fluoxetine, isoniazid, niacinamide, propoxyphene, ketaconazole, itraconazole, verapamil, valproate, troleandomycin, loratadine, nicotinamide, tricyclic antidepressants, SSRIs, nefazodone, protease inhibitors. 

Drugs that may affect tacrolimus include nephrotoxic agents (aminoglycosides, amphotericin B, cisplatin, cyclosporine), antifungals, bromocriptine, calcium channel blockers, cimetidine, clarithromycin, danazol, diltiazem, erythromycin, methylprednisolone, metoclopramide, carbamazepine, phenobarbital, phenytoin, rifamycins, cisapride, chloramphenicol, metronidazole, nefazodone, omeprazole, protease inhibitors, macrolide antibiotics, fosphenytoin, and St. John s wort. 

CYP3A4 HIV antivirals (e.g.. Ritonavir), amiodarone, cimetidine, diltiazem, erythromycin", grapefruit juice, ketoconazole... 

Intermittent claudication PO 100 mg twice a day at least 30 min before or 2 hr after meals. 50 mg twice a day during concurrent therapy with clarithromycin, diltiazem, erythromycin, fluconazole, fluoxetine, omeprazole, or sertraline. 

Verapamil, diltiazem, erythromycin, and itraconazole all increase the plasma concentration of buspirone. The plasma concentration is decreased almost 10-fold by rifampicin. Grapefruit juice increases the overall subjective effect of the drug (Mahmood and Saha-jwalla, 1999). 

An attractive strategy for predicting the clinical significance of irreversible inhibition is to use human hepatocytes wherein the natural turnover of enzymes might be preserved and in vivo cellular concentrations of inhibitors and metabolites would be achieved. Zhao et al. demonstrated time-dependent inactivation of CYP3A in cryopreserved hepatocytes for amprenavir, diltiazem, erythromycin, raloxifene, and TAO (126). Except for TAO, significant differences in inactivation efficiency potency between hepatocytes and HLMs were... 

A Atazanavir, clarithromycin, indinavir, itraconazole, ketoconazole, nefazodone, nelfinavir, ritonavir, saquinavir, telithromycin Amprenavir, aprepitant, diltiazem, erythromycin, fluconazole, fosamprenavir, grapefruit juice", verapamil Cimetidine... 

Clinically important, potentially hazardous interactions with amiodarone, atazanavir, azithromycin, bosentan, ciprofibrate, clarithromycin, clopidogrel, cyclosporine, darunavir, delavirdine, diltiazem, erythromycin, fosamprenavir, fusidic acid, gemfibrozil, grapefruit juice, imatinib, itraconazole, lopinavir, rabeprazole, ranolazine, red rice yeast, ritonavir, roxithromycin, selenium, St John s wort, tacrolimus, telithromycin, tipranavir, verapamil, warfarin... 

HIV protease inhibitors Indinavir Nelfinavir Ritonavir Saquinavir Amiodarone not Azithromycin Cimetidme Clarithromycin . Diltiazem Erythromycin Fluoxetine Fluvoxamine Grapefruit Juice Itraconazole Ketoconazole Mibefradil Nefezodone Troleandomydn Verapamil... 

Clarithromycin, danazol, diltiazem, erythromycin, fluconazole, fluvoxamine, grapefruit juice, itraconazole, ketoconazole, methylprednisolone, methyltestosterone, nicardipine, norethisterone, protease inhibitors, verapamil... 

CYP3A4 Alfentanil Alprazolam Astern izole Carbamazepine Cisapride Cyclosporine Diltiazem Erythromycin Felodipine Fluconazole Itraconazole Ketoconazole Lidocaine Lova statin Midazolam Nifedipine Quinidine Simvastatin Tacrolimus Terfenadine Verapamil... 

Pyrimethamine/sulfadoxine and tetracycline have been shown to increase halofantrine levels, and may therefore increase its toxicity. Diltiazem, erythromycin, ketoconazole, mefloquine, quinine, and quinidine might also increase the toxicity of halofantrine because they have been shown to inhibit its metabolism in vitro. The manufacturer has therefore recommended caution with the concurrent use of potent CYP3A4 inhibitors. Fatty food markedly increases halofantrine levels, consequently it is recommended that halofantrine is taken on an empty stomach. Grapefruit juice has a similar effect Note that halofantrine is no longer widely marketed. 

The manufacturers of sertindole contraindicate the concurrent use of cimetidine, diltiazem, erythromycin, itraconazole, ketoco-nazole, terfenadine and verapamil because of an increased risk of cardiac arrhythmias. Carbamazepine and phenytoin reduce plasma sertindole levels whereas fluoxetine and paroxetine increase them. No clinically relevant interactions occur with alprazolam, antacids, food or tobacco smoking. 

In the UK, the manufacturers recommend that the dose of eplerenone should not exceed 25 mg daily in patients taking mild to moderate CYP3A4 inhibitors such as amiodarone, diltiazem, erythromycin, fluconazole, saquinavir and verapamil. In the US, the manufacturer recommends that the starting dose for hypertension should be reduced to 25 mg daily for patients taking these drugs. This seems a sensible precaution. However, note that in many cases erythromycin appears to be a more potent inhibitor of CYP3A4 than clarithromycin (and certainly the other moderate CYP3A4 inhibitors listed above), and so extra caution is probably warranted with this combination. 

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