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Diltia XT Side Effects

Generic Name: Diltiazem

Please note - some side effects for Diltia XT may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).


For the consumer

For the professional

Side Effects of Diltia XT - for the consumer


Diltia XT 24-Hour Sustained-Release Capsules

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Diltia XT 24-Hour Sustained-Release Capsules:

Constipation; dizziness; facial flushing; headache; weakness.

Seek medical attention right away if any of these SEVERE side effects occur when using Diltia XT 24-Hour Sustained-Release Capsules:

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); hallucinations; irregular heartbeat; swelling of the feet or hands; tender, bleeding, or swollen gums.

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For the professional


Diltia XT

Serious adverse reactions to diltiazem hydrochloride have been rare in studies with other formulations, as well as with diltiazem hydrochloride extended-release capsules. It should be recognized, however, that patients with impaired ventricular function and cardiac conduction abnormalities have usually been excluded from these studies.

Hypertension: The most common adverse events (frequency ≥ 1%) in placebo-controlled, clinical hypertension studies with diltiazem hydrochloride extended-release capsule using daily doses up to 540 mg, are listed in the table below with placebo-treated patients included for comparison.

MOST COMMON ADVERSE EVENTS IN DOUBLE-BLIND, PLACEBO-CONTROLLED HYPERTENSION TRIALS

*Adverse events occurring in 1% or more of patients receiving diltiazem hydrochloride extended-release capsule (once daily dosing).

Adverse Events
(COSTART Term)
Diltiazem HCl
Extended-release
Capsules*
(Once-a-day dosage)
Placebo
n=303
# pts (%)
n=87
# pts (%)
rhinitis 29 (9.6) 7 (8.0)
headache 27 (8.9) 12 (13.8)
pharyngitis 17 (5.6) 4 (4.6)
constipation 11 (3.6) 2 (2.3)
cough increase 9 (3.0) 2 (2.3)
flu syndrome 7 (2.3) 1 (1.1)
edema, peripheral 7 (2.3) 0 (0.0)
myalgia 7 (2.3) 0 (0.0)
diarrhea 6 (2.0) 0 (0.0)
vomiting 6 (2.0) 0 (0.0)
sinusitis 6 (2.0) 1 (1.1)
asthenia 5 (1.7) 0 (0.0)
pain, back 5 (1.7) 2 (2.3)
nausea 5 (1.7) 1 (1.1)
dyspepsia 4 (1.3) 0 (0.0)
vasodilatation 4 (1.3) 0 (0.0)
injury, accident 4 (1.3) 0 (0.0)
pain, abdominal 3 (1.0) 0 (0.0)
arthrosis 3 (1.0) 0 (0.0)
insomnia 3 (1.0) 0 (0.0)
dyspnea 3 (1.0) 0 (0.0)
rash 3 (1.0) 1 (1.1)
tinnitus 3 (1.0) 0 (0.0)

Angina: The most common adverse events (frequency ≥ 1%) in a placebo-controlled, short-term (2 week) clinical angina study with diltiazem hydrochloride extended-release capsule (once daily dosing) are listed in the table below with placebo-treated patients included for comparison. In this trial, following a placebo phase, patients were randomly assigned to once-daily doses of either 120, 240, or 480 mg of diltiazem hydrochloride extended-release capsule (once daily dosing).

MOST COMMON ADVERSE EVENTS IN A DOUBLE-BLIND, PLACEBO-CONTROLLED SHORT-TERM, ANGINA TRIALS

*Adverse events occurring in 1% or more of patients receiving diltiazem hydrochloride extended-release capsule (once daily dosing).

Adverse Events
(COSTART Term)
Diltiazem HCl
Extended-release
Capsules*
(Once-a-day dosage)
Placebo
n=139
# pts (%)
n=50
# pts (%)
asthenia 5 (3.6) 2 (4.0)
headache 4 (2.9) 3 (6.0)
pain, back 4 (2.9) 1 (2.0)
rhinitis 4 (2.9) 1 (2.0)
constipation 3 (2.2) 1 (2.0)
nausea 3 (2.2) 0 (0.0)
edema, peripheral 3 (2.2) 1 (2.0)
dizziness 3 (2.2) 0 (0.0)
cough, increased 3 (2.2) 0 (0.0)
bradycardia 2 (1.4) 0 (0.0)
fibrillation, atrial 2 (1.4) 0 (0.0)
arthralgia 2 (1.4) 0 (0.0)
dream, abnormal 2 (1.4) 0 (0.0)
dyspnea 2 (1.4) 0 (0.0)
pharyngitis 2 (1.4) 1 (2.0)

Infrequent Adverse Events. The following additional events (COSTART Terms), listed by body system, were reported infrequently (less than 1%) in all subjects, hypertensive (n=425) or angina (n=318) patients who received diltiazem hydrochloride extended-release capsules, or with other formulations of diltiazem.

Hypertension

Cardiovascular: First-degree AV block, arrhythmia, postural hypotension, tachycardia, pallor, palpitations, phlebitis, ECG abnormality, ST elevation.

Nervous System: Vertigo, hypertonia, paresthesia, dizziness, somnolence.

Digestive System: Dry mouth, anorexia, tooth disorder, eructation.

Skin and Appendages: Sweating, urticaria, skin hypertrophy (nevus).

Respiratory System: Epistaxis, bronchitis, respiratory disorder.

Urogenital System: Cystitis, kidney calculus, impotence, dysmenorrhea, vaginitis, prostate disease.

Metabolic and Nutritional Disorders: Gout, edema.

Musculoskeletal System: Arthralgia, bursitis, bone pain.

Hemic and Lymphatic System: Lymphadenopathy.

Body as a Whole: Pain, unevaluable reaction, neck pain, neck rigidity, fever, chest pain, malaise.

Special Senses: Amblyopia (blurred vision), ear pain.

Angina:

Cardiovascular: Palpitations, AV block, sinus bradycardia, bigeminal extrasystole, angina pectoris, hypertension, hypotension, myocardial infarct, myocardial ischemia, syncope, vasodilatation, ventricular extrasystole.

Nervous System: Abnormal thinking, neuropathy, paresthesia.

Digestive System: Diarrhea, dyspepsia, vomiting, colitis, flatulence, GI hemorrhage, stomach ulcers.

Skin and Appendages: Contact dermatitis, pruritus, sweating.

Respiratory System: Respiratory distress.

Urogenital System: Kidney failure, pyelonephritis, urinary tract infection.

Metabolic and Nutritional Disorders: Weight increase.

Musculoskeletal System: Myalgia.

Body as a Whole: Chest pain, accidental injury, infection.

Special Senses: Eye hemorrhage, ophthalmitis, otitis media, taste perversion, tinnitus.

There have been post-marketing reports of Stevens-Johnson syndrome and toxic epidermal necrolysis associated with the use of diltiazem hydrochloride.

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