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Cartia Xt

Generic: Diltiazem Hydrochloride

Rx only
Calcium channel blocker✓ FDA-verified
View full FDA label ↗
Cartia XT is a medication used to treat high blood pressure and chest pain from angina. It works by relaxing blood vessels, which helps to lower blood pressure and improve blood flow to the heart. You take it in the form of extended-release capsules, usually starting with a dose of 180 to 240 mg once a day, and it can go up to a maximum of 480 mg daily if needed. It's important to know that this medication should not be used if you have a slow heart rate or certain heart block conditions. Additionally, if you're taking beta-blockers, your doctor may need to adjust your doses because combining these can affect your heart's 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 in 14 days.
Always follow your doctor's specific instructions for your dose.
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Side effects

Common

HeadachedizzinessbradycardiaAV blockedemaasthenia

Serious

Congestive heart failurepalpitationssyncopeallergic reactions
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Warnings

⚠ Important warnings

  • May cause slow heart rates or AV block.
  • Caution in patients with heart failure.
  • Monitor blood pressure for hypotension.
  • Risk of acute hepatic injury with liver issues.
  • Use with caution in patients with kidney or liver impairment.
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Drug interactions

  • Beta-blockersmay increase heart conduction issuesCaution
  • Digoxinmay increase digoxin levelsCaution
  • Midazolammay increase sedation effectsCaution
  • Carbamazepinemay increase carbamazepine levelsCaution
  • Alcoholmay increase diltiazem absorption.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).