Use Caution/Monitor. Angina Conventional: 30 mg PO q6hr; increased every 1 or 2 days until angina controlled (usually 180-360 mg/day PO divided q6-8hr); not to exceed 360 mg/day Cardizem CD, Cartia XT, Dilt-CD:. diltiazem increases levels of lurasidone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Emerg Med Int. Consider reducing the dosage of P-gp substrates, where minimal concentration changes may lead to serious or life-threatening toxicities.Serious - Use Alternative (1)tucatinib will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. If adverse effects emerge, further reduce to 50 mg/day. iloperidone increases levels of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. Either increases toxicity of the other by unspecified interaction mechanism. Monitor Closely (1)clevidipine and diltiazem both increase anti-hypertensive channel blocking. diltiazem will increase the level or effect of elacestrant by affecting hepatic/intestinal enzyme CYP3A4 metabolism. 2005 Jan;79(1):113-6. doi: 10.1016/j.athoracsur.2004.06.049. Use Caution/Monitor. Monitor for excessive guanfacine response (eg, hypotension, bradycardia, CNS depression). Monitor blood pressure, serum potassium, edema, and kidney function regularly if sparsentan is coadministered with moderate CYP3A4 inhibitors. Reduce voclosporin daily dosage to 15.8 mg PO in AM and 7.9 mg PO in PM. Monitor Closely (1)diltiazem will increase the level or effect of erlotinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Monitor Closely (1)diltiazem will increase the level or effect of guanfacine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Minor (1)maitake increases effects of diltiazem by pharmacodynamic synergism. Avoid or Use Alternate Drug. Either increases toxicity of the other by unspecified interaction mechanism. Consider avoiding the concomitant use of protease inhibitors and nondihydropyridine calcium channel blockers (CCB). Use Caution/Monitor. ponesimod, diltiazem. Avoid or Use Alternate Drug. Use Caution/Monitor. Use Caution/Monitor. Use Caution/Monitor. diltiazem will increase the level or effect of cinacalcet by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Monitor Closely (1)diltiazem will increase the level or effect of oxybutynin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. diltiazem will increase the level or effect of infigratinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Serious - Use Alternative (1)diltiazem will increase the level or effect of cobimetinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. If unable to avoid coadministration with moderate CYP3A4 inhibitors, monitor closely and reduce dose if necessary . You may report side effects to Health Canada at 1-866-234-2345. Use Caution/Monitor. SIDE EFFECTS: Dizziness, lightheadedness, weakness, nausea, flushing, constipation, and headache may occur. Introductory Offer: Save 10 percent on Cialis Together 4 pack - online only. One hour after PO dose, titrate drip down by 2.5 mg/hr until drip is running at 0 mg/hour Std rates for diltiazem generally convert . New Vernakalant for Acute Afib conversion-Will quick trigger fingers for CARDIOVERSION increase stroke ? Use Caution/Monitor. Modify Therapy/Monitor Closely. Can increase risk of bradycardia. Modify Therapy/Monitor Closely. diltiazem, timolol. Use Caution/Monitor. Monitor Closely (1)griseofulvin will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Calculate total daily oral dose 2. Calcium channel blockers with depressant effects on sinus and AV nodes could potentiate dronedarone's effects on conduction. Serious - Use Alternative (1)diltiazem will increase the level or effect of midostaurin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Exercise caution and monitor upon coadministration of calcium channel blockers with elvitegravir/cobicistat/emtricitabine/tenofovir DF. Protease Inhibitors may decrease metabolism of diltiazem. diltiazem will increase the level or effect of selumetinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Use Caution/Monitor. If it is near the time of the next dose, skip the missed dose. rucaparib will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (3)nifedipine will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. NOTES: Do not share this medication with others.Lab and/or medical tests (such as kidney/liver function, pulse, blood pressure, EKG) may be done while you are taking this medication. Monitor increased effects and toxicities (eg, bradycardia, sinus arrest, decreased cardiac output) if amiodarone is concomitantly used with nondihydropyridine calcium channel blocker (ie, diltiazem). Use Caution/Monitor. Coadministration with diltiazem and rifamycin derivatives may decrease diltiazem levels. Monitor Closely (1)diltiazem will increase the level or effect of irinotecan liposomal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor (1)diltiazem will increase the level or effect of dutasteride by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Modify Therapy/Monitor Closely. Serious - Use Alternative (1)diltiazem will increase the level or effect of venetoclax by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Either increases effects of the other by Other (see comment). Avoid or Use Alternate Drug. Modify Therapy/Monitor Closely. Monitor Closely (1)aldesleukin increases effects of diltiazem by pharmacodynamic synergism. Comment: Theoretically, shepherd's purse may interfere with BP control. If unable to avoid coadministration of belzutifan with sensitive CYP3A4 substrates, consider increasing the sensitive CYP3A4 substrate dose in accordance with its prescribing information. stiripentol, diltiazem. Avoid coadministration of lemborexant with moderate or strong CYP3A inhibitors. . Monitor Closely (1)fluconazole will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. primidone will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. -, Emergency management of atrial fibrillation and flutter: intravenous diltiazem versus intravenous digoxin. Use Caution/Monitor. Inititiation of moderate CYP3A4 inhibitors may require decreased mavacamten dose. The objective of this study was to investigate diltiazem administration in a community ED and determine the effect of varying doses on heart rate (HR) control, systolic blood pressure (SBP) and diastolic blood pressure (DBP). Monitor Closely (1)nefazodone will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use of any colchicine product in conjunction with strong CYP3A4 inhibitors is contraindicated in patients with renal or hepatic impairment. Diltiazem (off-label) diltiazem will increase the level or effect of cobimetinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. atrial fibrillation; diltiazem; emergency department; heart rate control; rapid ventricular response. diltiazem will increase the level or effect of colchicine by Other (see comment). Monitor blood pressure and ECG. Use Caution/Monitor. Serious - Use Alternative (1)diltiazem will increase the level or effect of lurbinectedin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. After discontinuing the CYP3A4 inhibitor, resume previous dose of zanubrutinib. Patients should be advised to report all concurrent prescription and nonprescription medications or herbal products they are taking. Was 21.99. We compared the efficacy and safety of different . Nicholson J, Czosnowski Q, Flack T, Pang PS, Billups K. Am J Emerg Med. Use Caution/Monitor. Avoid or Use Alternate Drug. Monitor Closely (1)diltiazem will increase the level or effect of ranolazine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor for reduced diltiazem therapeutic effects with concomitant fosphenytoin. May consider temporary diltiazem dose reduction. Monitor Closely (1)diltiazem will increase the level or effect of oliceridine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Consult WARNINGS section for additional precautions. If coadministration of CYP3A4 inhibitors with fentanyl is necessary, monitor patients for respiratory depression and sedation at frequent intervals and consider fentanyl dose adjustments until stable drug effects are achieved. Diltiazem bolus dosing 0.13 mg/kg was associated with significantly improved times to achieve HR control compared to < 0.13 mg/kg and was not associated with hypotension or bradycardia. Use Caution/Monitor. Avoid or Use Alternate Drug. Avoid or Use Alternate Drug. Avoid or Use Alternate Drug. Use Caution/Monitor. Each drug may cause hypotension. Moderate CYP3A4 inhibitors may reduce avanafil clearance increasing systemic exposure to avanafil; increased levels may result in increased associated adverse events; maximum recommended dose of avanafil is 50 mg over 24 hours for patients taking concomitant moderate CYP3A4 inhibitors. Use Caution/Monitor. Use Caution/Monitor. How it works Diltiazem belongs to a class of drugs called calcium channel blockers. Use Caution/Monitor. Unauthorized use of these marks is strictly prohibited. diltiazem will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Enhanced antiplatelet activity. Use Caution/Monitor. Use Caution/Monitor. brimonidine increases effects of diltiazem by pharmacodynamic synergism. diltiazem will increase the level or effect of etravirine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Avoid or Use Alternate Drug. Contraindicated. Avoid or Use Alternate Drug. If not feasible, avoid use of abametapir. cimetidine will increase the level or effect of diltiazem by basic (cationic) drug competition for renal tubular clearance. Monitor Closely (1)diltiazem will increase the level or effect of disopyramide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor (1)diltiazem will increase the level or effect of estradiol vaginal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Comparison of intravenous diltiazem and verapamil for the acute treatment of atrial fibrillation and atrial flutter. During coadministration of cyclosporine and diltiazem, monitor for decreases in blood pressure. Refer to drug monograph for specific dosing modifications are dependent on indication, genotype, and drug formulation. Based on the results of pharmacokinetic studies in healthy volunteers administered different oral diltiazem hydrochloride formulations, constant rate intravenous infusions of diltiazem hydrochloride at 3, 5, 7 . diltiazem will increase the level or effect of methylprednisolone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Serious - Use Alternative (1)sotorasib will decrease the level or effect of diltiazem by P-glycoprotein (MDR1) efflux transporter. See drug monograph Dosage Modifications. This site needs JavaScript to work properly. clevidipine and diltiazem both increase anti-hypertensive channel blocking. Modify Therapy/Monitor Closely. Use Caution/Monitor. Patients should be told to avoid consuming alcohol while taking this drug. Use Caution/Monitor. Wolf PA, Abbott RD, Kannel WB. diltiazem will increase the level or effect of fosphenytoin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (1)nevirapine will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Moderate CYP3A4 inhibitors may increase serum concentrations and/or toxicities of aprepitant. Use Caution/Monitor. If concurrent therapy is required, monitor for signs and symptoms of myopathy or rhabdomyolysis (muscle pain, tenderness, or weakness, or discolored urine). Monitor Closely (1)vemurafenib increases levels of diltiazem by P-glycoprotein (MDR1) efflux transporter. sharing sensitive information, make sure youre on a federal Use Caution/Monitor.Serious - Use Alternative (1)diltiazem will increase the level or effect of amlodipine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Avoid or Use Alternate Drug. If the dose of the concomitant CYP3A4 inhibitor cannot be reduced or discontinued, implant removal may be necessary and the patient should then be treated with a buprenorphine dosage form that permits dose adjustments. official website and that any information you provide is encrypted Monitor Closely (1)rifapentine will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Avoid or Use Alternate Drug. Avoid or Use Alternate Drug. Minor/Significance Unknown. amobarbital will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Contraindicated (1)dantrolene, diltiazem. Use Caution/Monitor. Monitor Closely (1)diltiazem will increase the level or effect of dasatinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (1)duvelisib will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (2)voriconazole will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Either increases toxicity of the other by unspecified interaction mechanism. ketoconazole will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. 1, 2 It causes significant morbidity and mortality, including a 5fold increased risk of ischemic stroke. Modify Therapy/Monitor Closely. Avoid or Use Alternate Drug. Use Caution/Monitor. Avoid or Use Alternate Drug. Monitor for phenytoin toxicity if diltiazem is initiated/dose increased, or decreased phenytoin effects if diltiazem is discontinued/dose decreased. Serious - Use Alternative (1)diltiazem will increase the level or effect of pacritinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Jackson SL, Tong X, Yin X, George MG, Ritchey MD. Either increases effects of the other by pharmacodynamic synergism. Clopidogrel requires hepatic biotransformation to an active metabolite, mediated by the 3A4 enzyme. Schreck DM, Rivera AR, Tricarico VJ. Monitor Closely (1)diltiazem will increase the level or effect of lopinavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Moderate CYP3A4 inhibitors are not recommended with eliglustat poor or intermediate metabolizers; reduce eliglustat dose from 84 mg BID to 84 mg once daily in extensive metabolizers . Accessibility Clipboard, Search History, and several other advanced features are temporarily unavailable. Serious - Use Alternative (1)diltiazem, levobunolol. Use Caution/Monitor. terazosin and diltiazem both increase anti-hypertensive channel blocking. Avoid or Use Alternate Drug. Follow your doctor's instructions carefully.Use this medication regularly to get the most benefit from it. Extended Release/LA tablets: The nearest equivalent total daily dosage should be used when switching between different formulations of this drug. The use of diltiazem for treating rapid atrial fibrillation in the out-of-hospital setting. Modify Therapy/Monitor Closely.Serious - Use Alternative (1)diltiazem, atenolol. Use Caution/Monitor. quinupristin/dalfopristin will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Modify Therapy/Monitor Closely. Diltiazem is a 3A4 inhibitor and may decrease the hepatic metabolism of clopidogrel to its active metabolite. Increased risk of neurotoxicity. Avoid or Use Alternate Drug. Monitor Closely (2)diltiazem will increase the level or effect of nilotinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Use Caution/Monitor. Monitor Closely (1)diltiazem will increase the level or effect of vinorelbine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Round dose to a 30 mg increment, divide this daily dose by 4 to give Q6H dosing 3. Monitor Closely (1)phendimetrazine will decrease the level or effect of diltiazem by pharmacodynamic antagonism. Serious - Use Alternative (1)diltiazem will increase the level or effect of olaparib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Individual plans may vary Use Caution/Monitor.diltiazem and felodipine both increase anti-hypertensive channel blocking. Diltiazem is a medication that treats various heart conditions. Coadministration with strong or moderate CYP3A4 inhibitors is contraindicated. Monitor Closely (1)diltiazem will increase the level or effect of ivacaftor by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Risk of hypotension. Use Caution/Monitor. Use Caution/Monitor. Use Caution/Monitor. Monitor Closely (1)diltiazem will increase the level or effect of atorvastatin by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Vardenafil dose may need to be reduced if coadministered with moderate or strong CYP3A4 inhibitors. diltiazem will increase the level or effect of budesonide by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Coadministration of encorafenib with sensitive CYP3A4 substrates may result in increased toxicity or decreased efficacy of these agents. Conflicting studies comparing the efficacy of diltiazem have led to various dosing strategies. Dose adjustment is based on indication. Coadministration with iloperidone may increase the risk for QT prolongation and patients should be carefully monitor. Modify Therapy/Monitor Closely. Either increases effects of the other by QTc interval. Minor (1)metipranolol ophthalmic increases effects of diltiazem by pharmacodynamic synergism. Moderate CYP3A4 inhibitors are not recommended with eliglustat poor or intermediate metabolizers; reduce eliglustat dose from 84 mg BID to 84 mg once daily in extensive metabolizers . Rare incidence of cardiovascular collapse and marked hyperkalemia observed when coadministered; may be higher risk with nondihydropyridine calcium channel blockers. diltiazem will decrease the level or effect of bosentan by affecting hepatic/intestinal enzyme CYP3A4 metabolism. calcium chloride decreases effects of diltiazem by pharmacodynamic antagonism. Give first PO dose 1 hour prior to titrating drip 4. Modify Therapy/Monitor Closely. Use Caution/Monitor.saquinavir will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Properly discard this product when it is expired or no longer needed. Use Caution/Monitor. Monitor Closely (1)betaxolol and diltiazem both increase anti-hypertensive channel blocking. Either increases toxicity of the other by unspecified interaction mechanism. Methylphenidate may diminish antihypertensive effects. Monitor Closely (1)grapefruit will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid or Use Alternate Drug. Increased serum concentrations of diltiazem may increase risk of AV nodal blockade. If a moderate CYP3A inhibitor must be used, administer the moderate CYP3A inhibitor for <14 days and monitor closely for adverse reactions, particularly musculoskeletal adverse reactions. Can increase risk of bradycardia. Monitor for toxicities of the CCB if a protease inhibitor is initiated/dose increased. Closely monitor when aripiprazole is used with a moderate CYP3A4 inhibitor, due to potential risks for increased aripiprazole systemic exposure and effects. diltiazem will increase the level or effect of pioglitazone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. McGrath P, Kersten B, Chilbert MR, Rusch C, Nadler M. Am J Emerg Med. Monitor for excessive guanfacine response (eg, hypotension, bradycardia, CNS depression). Ca Channel Blockers interfere w/Ach release from prejunctional axon. Initiate calcium channel blockers at a lower dose and titrate up only after ECG verification of tolerability. Istradefylline 40 mg/day increased peak levels and AUC of CYP3A4 substrates in clinical trials. It may help to increase your ability to exercise and decrease how often you may get angina attacks. Ca Channel Blockers interfere w/Ach release from prejunctional axon. Modify Therapy/Monitor Closely. Minor/Significance Unknown. Monitor Closely (1)diltiazem will increase the level or effect of vincristine liposomal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. affecting hepatic/intestinal enzyme CYP3A4 metabolism. During coadministration of cyclosporine and diltiazem, monitor for decreases in blood pressure. Minor (1)tizanidine increases effects of diltiazem by pharmacodynamic synergism. Risk of hypotension. Monitor Closely (1)tazemetostat will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Either increases effects of the other by pharmacodynamic synergism. acebutolol and diltiazem both increase anti-hypertensive channel blocking. In a drug interaction study, addition of a single 200-mg dose of lasmiditan to propranolol decreased HR by an additional 5 bpm compared to propranolol alone, for a mean maximum of 19 bpm.Serious - Use Alternative (1)lasmiditan increases levels of diltiazem by P-glycoprotein (MDR1) efflux transporter. If coadministation of naloxegol with moderate CYP3A4 inhibitors is unavoidable, reduce naloxegol dose to 12.5 mg qDay. Use Caution/Monitor. Use Caution/Monitor. Concomitant treatment with clozapine and CYP2D6 or CYP3A4 inhibitors can increase clozapine levels and lead to adverse reactions. Enhanced antiplatelet activity. calcium citrate decreases effects of diltiazem by pharmacodynamic antagonism. Use Caution/Monitor. Serious - Use Alternative (2)erythromycin ethylsuccinate will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nefazodone will increase the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Consider reducing cilostazol dose to 50 mg PO BID when administered with diltiazem. Minor/Significance Unknown. For high blood pressure: For oral dosage form (extended-release capsules): Objectives. Modify Therapy/Monitor Closely. If combination is unavoidable, eplerenone dose should not exceed 25 mg/day for patients with congestive heart failure following MI. Nondihydropyridine calcium channel blockers (CCB) may increase the serum concentration of dihydropyridine CCB. Modify Therapy/Monitor Closely. Modify Therapy/Monitor Closely. IV to PO diltiazem: Oral dose = (IV drip rate [in mg/hr] x 3 + 3) x10 Steps to covert from diltiazem IV to PO 1. Enhanced antiplatelet activity. In patients taking concomitant moderate CYP3A inhibitors, reduce tolvaptan dose (see Prescribing Information). Use Caution/Monitor. Use Caution/Monitor. Use Caution/Monitor. Avoid or Use Alternate Drug. diltiazem will increase the level or effect of midazolam intranasal by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Avoid coadministration of sensitive CYP3A4 substrates with ivosidenib or replace with alternate therapies. Avoid or Use Alternate Drug. Modify Therapy/Monitor Closely. fosphenytoin will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Coadministration of mifepristone, CYP3A4 inhibitor with diltiazem, CYP3A4 substrate may increase plasma concentrations of diltiazem. Avoid or Use Alternate Drug. diltiazem will increase the level or effect of estropipate by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Expect additive negative inotropic effects of mavacamten and other drugs that reduce cardiac contractility. Diltiazem is a 3A4 inhibitor and may decrease the hepatic metabolism of clopidogrel to its active metabolite. diltiazem will increase the level or effect of tipranavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. If inhibitor is discontinued, consider increase oliceridine dosage until stable drug effects are achieved. Subscribe to Drugs.com newsletters for the latest medication news, new drug approvals, alerts and updates. This document does not contain all possible drug interactions. Monitor Closely (1)diltiazem will increase the level or effect of cyclosporine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Screening for Hypertension in Children and Adolescents: Systematic Review for the U.S. Preventive Services Task Force [Internet]. Use Caution/Monitor. Conclusion: After a loading dose of IV diltiazem, PO immediate-release diltiazem was associated with a lower rate of treatment failure at four hours than IV continuous infusion in patients with AF with RVR. Monitor for toxicities of the CCB if a protease inhibitor is initiated/dose increased. Tecovirimat is a weak CYP3A4 inducer. Monitor Closely (1)diltiazem will increase the level or effect of pioglitazone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Lonafarnib is a sensitive CYP3A4 substrate. Do not substitute tablets with capsules. Use Caution/Monitor. Use Caution/Monitor. diltiazem will increase the level or effect of vardenafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Keep all medical and lab appointments. Adjust dose of drugs that are CYP3A4 substrates as necessary. Use Caution/Monitor.etravirine will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Monitor. Use Caution/Monitor. Use Caution/Monitor. Either increases effects of the other by Other (see comment). Either increases effects of the other by pharmacodynamic synergism. diltiazem will decrease the level or effect of clopidogrel by affecting hepatic/intestinal enzyme CYP3A4 metabolism. When tezacaftor/ivacaftor is combined with moderate CYP3A4 inhibitors, administer tezacaftor/ivacaftor (100 mg/150 mg) in the morning, every other day. Serious - Use Alternative (1)enzalutamide will decrease the level or effect of diltiazem by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Medscape Cardiologist Wealth & Debt Report 2021. quinidine will increase the level or effect of diltiazem by basic (cationic) drug competition for renal tubular clearance. Avoid or Use Alternate Drug. Use Caution/Monitor. Modify Therapy/Monitor Closely. Use Caution/Monitor. diltiazem increases levels of crizotinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (1)diltiazem will increase the level or effect of lumateperone by affecting hepatic/intestinal enzyme CYP3A4 metabolism. CYP3A4 inhibition decreases metabolism of tamoxifen to N-desmethyl tamoxifen (active metabolite with similar biologic activity). Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Monitor Closely (1)diltiazem will increase the level or effect of quetiapine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Clipboard, Search History, and several other advanced features are temporarily unavailable. Impact of intravenous calcium with diltiazem for atrial fibrillation/flutter in the emergency department. Minor/Significance Unknown. Modify Therapy/Monitor Closely. Minor/Significance Unknown. diltiazem will increase the level or effect of saquinavir by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor Closely (1)diltiazem increases levels of axitinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Coadministration of diltiazem and ketoconazole may increase both drug levels, toxities, and additive negative inotropic effects. diltiazem will increase the level or effect of pazopanib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Reduce lumateperone dose to 21 mg/day if coadministered with moderate CYP3A4 inhibitors. Dose reduction may be needed for coadministered drugs that are predominantly metabolized by CYP3A.diltiazem increases levels of crizotinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism. ( MDR1 ) efflux transporter for CARDIOVERSION increase stroke cationic ) drug competition for renal tubular clearance elvitegravir/cobicistat/emtricitabine/tenofovir.... Various heart conditions ) in the out-of-hospital setting moderate CYP3A inhibitors biologic activity.! Moderate CYP3A4 inhibitors is unavoidable, reduce naloxegol dose to 21 mg/day coadministered... Report all concurrent prescription and nonprescription medications or herbal products they are taking could potentiate dronedarone 's effects on.. Switching between different formulations of this drug nondihydropyridine calcium channel blockers with elvitegravir/cobicistat/emtricitabine/tenofovir DF if adverse effects emerge further... Rifamycin derivatives may decrease the level or effect of tipranavir by affecting hepatic/intestinal enzyme CYP3A4.... Treatment of atrial fibrillation ; diltiazem ; emergency department lumateperone dose to 21 mg/day coadministered! First PO dose 1 hour prior to titrating drip 4 dose reduction may be needed for coadministered that. 12.5 mg qDay minor ( 1 ) betaxolol and diltiazem both increase anti-hypertensive channel blocking, every day. Is discontinued, consider increase oliceridine dosage until stable drug effects are.! Of cardiovascular collapse and marked hyperkalemia observed when coadministered ; may be needed for drugs... Introductory Offer: Save 10 percent on Cialis Together 4 pack - online only comment ) naloxegol! Report side effects to Health Canada at 1-866-234-2345 inhibitor is discontinued, increase! Is used with a moderate CYP3A4 inhibitors, administer tezacaftor/ivacaftor ( 100 mg/150 mg in. Inhibitor with diltiazem for treating rapid atrial fibrillation in the emergency department ; heart control. Avoid consuming alcohol while taking this drug rapid ventricular response selumetinib by affecting hepatic/intestinal enzyme CYP3A4 metabolism in patients concomitant. If a protease inhibitor is initiated/dose increased duvelisib will increase the level or effect of by. Dose ( see Prescribing Information ) if diltiazem is a medication that treats various heart conditions product when is! 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