FDA label
What is Cartia Xt used for?
Cartia Xt contains diltiazem. The FDA-approved uses below are quoted from the Indications and Usage section of its DailyMed label.
Source: DailyMed SPL label file dated 2026-10-23. Publisher page
The FDA label says: “Diltiazem hydrochloride extended-release capsules (once-a-day dosage) are indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive medications.”
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Cartia Xt, capsule, extended release
Indications and Usage, quoted from the label by DirectRx (ANDA074752). Cross-references to other label sections are left out.
Diltiazem hydrochloride extended-release capsules (once-a-day dosage) are indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive medications.
Diltiazem hydrochloride extended-release capsules (once-a-day dosage) are indicated for the management of chronic stable angina and angina due to coronary artery spasm.
Source: DailyMed label, set id dbfda3a5-5602-6e47-e053-2995a90ac07b, version 3, effective January 22, 2025. NDC 72189-344, one of 1 listing for this product.
Questions
What is Cartia Xt used for?
The FDA label says: “Diltiazem hydrochloride extended-release capsules (once-a-day dosage) are indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive medications.”
What drug class is Cartia Xt?
FDA lists diltiazem in the Calcium Channel Blocker established pharmacologic class.
Does this page cover off-label uses or dosing?
No. This page shows only the Indications and Usage section of the FDA label. Ask a pharmacist or prescriber about dosing.
More on Cartia Xt
- Is Cartia Xt a controlled substance?Federal schedule
- What is Diltiazem used for?FDA label uses
- Is Diltiazem a controlled substance?Federal schedule
- Generic for Cardizem CDFDA Orange Book
- Generic for Cardizem SRFDA Orange Book
- Generic for Dilacor XRFDA Orange Book
- Generic for TiazacFDA Orange Book
- Generic for CardizemFDA Orange Book
- Generic for Cardizem LAFDA Orange Book
- Calcium Channel Blockers listFDA drug class
- NDC 72189-344Cartia Xt NDC record