Diltiazem 240mg/24hr Capsules

Generic For: Cardizem CD

Diltiazem 240mg/24hr extended-release capsules (brand name Cardizem CD) are a once-daily calcium channel blocker used to treat high blood pressure and chronic stable angina. By relaxing blood vessels and easing the heart's workload, diltiazem helps lower blood pressure and reduce chest pain episodes. After a licensed provider reviews your prescription, your order ships from a licensed U.S. pharmacy.

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Buy Diltiazem 240mg/24hr Capsules (Cardizem CD) Online

A calcium channel blocker for high blood pressure and chronic stable angina (chest pain)

Diltiazem 240mg/24hr Capsules Quick Facts

Drug classCalcium channel blocker
TreatsHigh blood pressure, chronic stable angina
FormCapsule
Typical dosingTake 1 capsule by mouth daily.
Prescription requiredYes — prescription only

What Is Diltiazem 240mg/24hr Capsules?

Diltiazem 240mg/24hr is an extended-release capsule that delivers medication steadily over 24 hours, so it is taken once daily. It belongs to a class of medicines called calcium channel blockers, which relax and widen blood vessels and reduce how hard the heart has to work. Doctors prescribe it to lower high blood pressure and to prevent chest pain (angina) caused by coronary artery disease. Sold under the brand name Cardizem CD, it is available by prescription only.

What Does Diltiazem 240mg/24hr Capsules Treat?

High blood pressure (hypertension)
Chronic stable angina (chest pain)
Angina due to coronary artery spasm
Reducing the heart's workload in coronary artery disease
Used alone or with other blood pressure medications

Diltiazem 240mg/24hr Capsules Dosage

Hypertension: 180–240 mg by mouth once daily; may titrate up to 480 mg once daily.
Chronic stable angina: 120–180 mg by mouth once daily; may titrate up to 480 mg once daily.
Swallow capsule whole; do not crush or chew. Take at the same time each day.

Your prescriber will determine the dose and duration that are right for you. Always follow the directions on your prescription label.

Diltiazem 240mg/24hr Capsules Side Effects

Common side effects

  • Headache
  • Dizziness
  • Swelling of the ankles or feet (edema)
  • Fatigue or weakness
  • Slow heart rate
  • Constipation
  • Nausea
  • Flushing

Serious side effects

Stop taking this medication and seek medical attention right away if you experience:

  • Very slow heartbeat or fainting
  • New or worsening heart failure symptoms (shortness of breath, swelling)
  • Severe skin reactions (rash, blistering, peeling)
  • Signs of liver problems (yellowing skin or eyes, dark urine)
  • Severe dizziness or very low blood pressure
  • Irregular heart rhythm

Warnings & Interactions

Do not use with sick sinus syndrome or 2nd/3rd-degree AV block without a pacemaker
Do not use with severe low blood pressure (systolic below 90 mmHg)
Avoid in acute myocardial infarction with pulmonary congestion
Use caution with beta-blockers or digoxin; may slow the heart excessively
May worsen heart failure in patients with reduced heart function
Diltiazem interacts with many drugs metabolized by CYP3A4 (e.g., certain statins)
Do not stop suddenly without talking to your provider

Tell your prescriber about all medications, supplements, and health conditions before starting diltiazem 240mg/24hr capsules.

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Frequently Asked Questions

What is Diltiazem 240mg/24hr used for?

Diltiazem extended-release capsules are FDA-approved to treat high blood pressure and to prevent chronic stable angina (chest pain). It works by relaxing blood vessels and reducing the heart's workload.

Do I need a prescription for Diltiazem 240mg capsules?

Yes. Diltiazem is a prescription-only medication in the United States. A licensed healthcare provider must review your health information and prescription before this medication can be dispensed.

How does ordering and shipping work?

After you place your order, a licensed provider or pharmacist reviews your prescription and medical details. Once approved, your medication is filled and shipped from a licensed U.S. pharmacy directly to your address.

Is Diltiazem 240mg/24hr the same as Cardizem CD?

Yes. Cardizem CD is the brand name for diltiazem hydrochloride extended-release capsules taken once every 24 hours. Generic diltiazem ER contains the same active ingredient at the same strength.

How should I take Diltiazem extended-release capsules?

Take one capsule by mouth once daily at the same time each day, exactly as prescribed. Swallow the capsule whole; do not crush or chew it, as this can release the medication too quickly.

What should I avoid while taking Diltiazem?

Diltiazem interacts with many medications, including certain statins, beta-blockers, and drugs processed by the liver enzyme CYP3A4. Tell your provider about all medicines and supplements you take, and do not stop diltiazem abruptly without medical guidance.

What are the most common side effects of Diltiazem?

The most common side effects include headache, dizziness, ankle swelling, fatigue, slow heart rate, and constipation. Contact your provider if side effects persist or if you experience fainting, shortness of breath, or an irregular heartbeat.