IN THIS ARTICLE
- What is diltiazem (Cardizem, Cardizem CD, Cardizem LA, Cartia XT, Dilacor XR, Dilt-CD, Diltia XT, Diltiazem Hydrochloride CD, Diltiazem Hydrochloride SR, Diltiazem Hydrochloride XR, Diltiazem Hydrochloride XT, Dilt-XR, Diltzac, Taztia XT, Tiazac)?
- What are the possible side effects of diltiazem?
- What is the most important information I should know about diltiazem?
- What should I discuss with my healthcare provider before taking diltiazem?
- How should I take diltiazem?
- What happens if I miss a dose?
- What happens if I overdose?
- What should I avoid while taking diltiazem?
- What other drugs will affect diltiazem?
- Where can I get more information?
What happens if I miss a dose?
Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose. Do not take extra medicine to make up the missed dose.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. An overdose of diltiazem can be fatal.
Overdose symptoms may include slow heartbeat, weakness, chest pain, shortness of breath, feeling light-headed, or fainting.
What should I avoid while taking diltiazem?
Diltiazem may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be alert.
Avoid drinking alcohol while taking diltiazem.
Grapefruit and grapefruit juice may interact with diltiazem and lead to potentially dangerous effects. Discuss the use of grapefruit products with your doctor.
Avoid exposure to sunlight or tanning beds. Diltiazem can make you sunburn more easily. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.
What other drugs will affect diltiazem?
Tell your doctor about all other medicines you use, especially:
- amiodarone (Cordarone, Pacerone);
- buspirone (BuSpar);
- carbamazepine (Carbatrol, Tegretol);
- cimetidine (Tagamet);
- cyclosporine (Gengraf, Neoral, Sandimmune);
- digoxin (digitalis, Lanoxin, Lanoxicaps);
- quinidine (Quin-G);
- rifampin (Rifadin, Rimactane, Rifater);
- an antibiotic such as clarithromycin (Biaxin), dalfopristin/quinupristin (Synercid), erythromycin (E.E.S., EryPed, Ery-Tab, Erythrocin, Pediazole), or telithromycin (Ketek);
- antifungal medication such as itraconazole (Sporanox), ketoconazole (Extina, Ketozole, Nizoral, Xolegal), miconazole (Oravig), or voriconazole (Vfend);
- a beta-blocker such as atenolol (Tenormin, Tenoretic), carvedilol (Coreg), labetalol (Normodyne, Trandate), metoprolol (Dutoprol, Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal, InnoPran), sotalol (Betapace), and others;
- cholesterol medications such as atorvastatin (Lipitor, Caduet), fluvastatin (Lescol), lovastatin (Mevacor, Altoprev, Advicor), pravastatin (Pravachol), rosuvastatin (Crestor), or simvastatin (Zocor, Simcor, Vytorin);
- HIV/AIDS medicine such as atazanavir (Reyataz), delavirdine (Rescriptor), fosamprenavir (Lexiva), indinavir (Crixivan), nelfinavir (Viracept), or ritonavir (Norvir, Kaletra); or
- a sedative such as midazolam (Versed) or triazolam (Halcion).
This list is not complete and other drugs may interact with diltiazem. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
Where can I get more information?
Your pharmacist can provide more information about diltiazem.
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
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