ADVERSE REACTIONS
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 diltiazem hydrochloride extended-release capsule (once-a-day dosing) product up to 360 mg with rates in placebo patients shown for comparison.
Diltiazem Hydrochloride Extended-release Capsule (once-a-day) Placebo-controlled Angina and Hypertension Trials Combined | Adverse Reactions | Diltiazem Extended-release
Capsule (once-a-day)
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% | 1.7 |
| Asthenia | 1.8% | 1.7% |
In clinical trials of diltiazem hydrochloride extended-release capsules (Once A Day Dosage), diltiazem hydrochloride tablets and diltiazem hydrochloride extended-release 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 hepatic warnings), 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 diltiazem: 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, 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 diltiazem therapy is yet to be established.
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REPORTS OF SIDE EFFECTS / ADVERSE REACTIONS RELATED TO CARTIA XT
Below is a sample of reports where side effects / adverse reactions may be related to Cartia XT. The information is not vetted and should not be cosidered as verified clinical evidence.
Possible Cartia XT side effects / adverse reactions in 18 year old male
Reported by a consumer/non-health professional from Australia on 2007-01-18
Patient: 18 year old male
Reactions: Tinnitus, Nausea, Deafness Unilateral, Vertigo, Dizziness
Suspect drug(s):
Cartia XT
Possible Cartia XT side effects / adverse reactions in 68 year old female
Reported by a consumer/non-health professional from Australia on 2007-02-06
Patient: 68 year old female
Reactions: Tinnitus, Vertigo, Deafness
Suspect drug(s):
Cartia XT
Other drugs received by patient: Warfarin Sodium; Astrix
Possible Cartia XT side effects / adverse reactions in 18 year old male
Reported by a consumer/non-health professional from Australia on 2007-02-12
Patient: 18 year old male
Reactions: Vomiting, Tinnitus, Nausea, Paralysis, Eating Disorder, Deafness Unilateral, Vertigo, Dizziness
Suspect drug(s):
Cartia XT
Other drugs received by patient: Acetaminophen W/ Codeine; Panadol; Tramadol HCL
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