Cardizem CD
- Generic Name: diltiazem hcl
- Brand Name: Cardizem CD
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Cardizem CD Side Effects Center
What Is Cardizem CD?
Cardizem CD (diltiazem HCl) is a calcium channel blocker used to treat high blood pressure (hypertension) and prevent chest pain (angina). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Cardizem CD is available in generic form.
What Are Side Effects of Cardizem CD?
Common side effects of Cardizem CD include:
- dizziness,
- lightheadedness,
- weakness,
- tired feeling,
- nausea,
- upset stomach,
- flushing,
- headache,
- sore throat,
- cough,
- stuffy nose, and
- flushing (warmth, redness, or tingly feeling).
Tell your doctor if you experience unlikely but serious side effects of Cardizem CD including:
- fainting,
- slow/irregular/pounding/fast heartbeat,
- swelling ankles/feet,
- shortness of breath,
- unusual tiredness,
- unexplained/sudden weight gain,
- mental/mood changes (such as depression, agitation), or
- unusual dreams.
Dosage for Cardizem CD
To treat hypertension, the starting dose of Cardizem CD when used alone is 180 to 240 mg once daily. To treat angina, the starting dose is 120 or 180 mg once daily.
What Drugs, Substances, or Supplements Interact with Cardizem CD?
Cardizem CD may interact with amiodarone, digoxin, atazanavir, cimetidine, quinidine, St. John's wort, azole antifungals, antibiotics, rifamycins, buspirone, cyclosporine, sirolimus, statins, anti-seizure drugs, benzodiazepines, cimetidine, or over-the-counter medications with ingredients that could increase blood pressure or heart rate. Tell your doctor all medications and supplements you use.
Cardizem CD During Pregnancy or Breastfeeding
Cardizem CD should be used only when prescribed during pregnancy. This drug passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breastfeeding.
Additional Information
Our Cardizem CD (diltiazem HCl) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
Cardizem CD Consumer Information
Get emergency medical help if you have signs of an allergic reaction (hives, difficult breathing, swelling in your face or throat) or a severe skin reaction (fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling).
Call your doctor at once if you have:
- chest pain;
- slow heartbeats;
- pounding heartbeats or fluttering in your chest;
- a light-headed feeling, like you might pass out; or
- heart problems--swelling, rapid weight gain, feeling short of breath.
Common side effects may include:
- swelling;
- dizziness, weakness;
- headache;
- nausea; or
- rash.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
Read the entire detailed patient monograph for Cardizem CD (Diltiazem HCl)
Cardizem CD Professional Information
SIDE EFFECTS
Serious adverse reactions have been rare in studies carried out to date, but it should be recognized that patients with impaired ventricular function and cardiac conduction abnormalities have usually been excluded from these studies.
The following table presents the most common adverse reactions reported in placebo-controlled angina and hypertension trials in patients receiving CARDIZEM CD up to 360 mg with rates in placebo patients shown for comparison.
CARDIZEM CD Capsule Placebo-Controlled Angina and
Hypertension Trials Combined
Adverse Reactions | Cardizem CD (n=607) |
Placebo (n=301) |
Headache | 5.4% | 5.0% |
Dizziness | 3.0% | 3.0% |
Bradycardia | 3.3% | 1.3% |
AV Block First Degree | 3.3% | 0.0% |
Edema | 2.6% | 1.3% |
ECG Abnormality | 1.6% | 2.3% |
Asthenia | 1.8% | 1.7% |
In clinical trials of CARDIZEM CD capsules, CARDIZEM tablets, and CARDIZEM SR capsules involving over 3200 patients, the most common events (i.e., greater than 1%) were edema (4.6%), headache (4.6%), dizziness (3.5%), asthenia (2.6%), first-degree AV block (2.4%), bradycardia (1.7%), flushing (1.4%), nausea (1.4%), and rash (1.2%). In addition, the following events were reported infrequently (less than 1%) in angina or hypertension trials:
Cardiovascular: Angina, arrhythmia, AV block (second- or third-degree), bundle branch block, congestive heart failure, ECG abnormalities, hypotension, palpitations, syncope, tachycardia, ventricular extrasystoles.
Nervous System: Abnormal dreams, amnesia, depression, gait abnormality, hallucinations, insomnia, nervousness, paresthesia, personality change, somnolence, tinnitus, tremor.
Gastrointestinal: Anorexia, constipation, diarrhea, dry mouth, dysgeusia, dyspepsia, mild elevations of SGOT, SGPT, LDH, and alkaline phosphatase (see WARNINGS, Acute Hepatic Injury), thirst, vomiting, weight increase.
Dermatological: Petechiae, photosensitivity, pruritus, urticaria.
Other: Amblyopia, CPK increase, dyspnea, epistaxis, eye irritation, hyperglycemia, hyperuricemia, impotence, muscle cramps, nasal congestion, nocturia, osteoarticular pain, polyuria, sexual difficulties.
The following postmarketing events have been reported infrequently in patients receiving CARDIZEM: acute generalized exanthematous pustulosis, allergic reactions, alopecia, angioedema (including facial or periorbital edema), asystole, erythema multiforme (including Stevens-Johnson syndrome, toxic epidermal necrolysis), exfoliative dermatitis, extrapyramidal symptoms, gingival hyperplasia, hemolytic anemia, increased bleeding time, leukopenia, photosensitivity (including lichenoid keratosis and hyperpigmentation at sun-exposed skin areas), purpura, retinopathy, myopathy, and thrombocytopenia. In addition, events such as myocardial infarction have been observed which are not readily distinguishable from the natural history of the disease in these patients. A number of well-documented cases of generalized rash, some characterized as leukocytoclastic vasculitis, have been reported. However, a definitive cause and effect relationship between these events and CARDIZEM therapy is yet to be established.
Read the entire FDA prescribing information for Cardizem CD (Diltiazem HCl)
&Copy; Cardizem CD Patient Information is supplied by Cerner Multum, Inc. and Cardizem CD Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.