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Cardizem Cd

Generic: Diltiazem Hydrochloride

Rx only
Calcium channel blocker✓ FDA-verified
View full FDA label ↗
Cardizem CD is a medication used to treat high blood pressure and chest pain from angina. It works by relaxing the blood vessels, making it easier for the heart to pump blood and reducing the heart's workload. You typically take it as a capsule once a day, starting with a dose of 180 to 240 mg, and it can go up to a maximum of 480 mg depending on your needs. One important warning is that it can cause slow heart rates, especially in people with certain heart conditions. Additionally, if you're taking beta-blockers, you may need to adjust the doses of both medications to avoid added effects on heart function.
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Uses

  • Hypertension.
  • Chronic stable angina.
  • Angina due to coronary artery spasm.
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Dosage

Start with 180 to 240 mg once daily for hypertension.
For angina, start with 120 or 180 mg once daily.
Doses may be adjusted based on individual needs.
Maximum effect for hypertension usually seen after 14 days.
Always follow your doctor's specific instructions for your dose.
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Side effects

Common

Common side effects include headachedizzinessand bradycardiaOther mild effects may include edema and astheniaInfrequent side effects include abnormal dreams and gastrointestinal issues

Serious

Serious side effects can include AV block and worsening heart failure
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Warnings

⚠ Important warnings

  • May cause slow heart rates or AV block, especially in certain patients.
  • Caution in patients with heart failure or impaired ventricular function.
  • Monitor blood pressure for potential hypotension.
  • Risk of acute hepatic injury with liver function changes.
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Drug interactions

  • Beta-blockersmay increase heart conduction effectsCaution
  • Digoxinmay increase digoxin levelsCaution
  • Midazolammay increase sedation effectsCaution
  • Carbamazepinemay increase carbamazepine levelsCaution
  • Cimetidinemay increase diltiazem levels.Caution

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Answers pulled from the FDA label only.

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Medical Disclaimer: This content is provided for informational and educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before taking any medication.
Data Source: Publicly available drug labeling information from the U.S. Food and Drug Administration (FDA).