Cardizem CD (Diltiazem Hcl) Customer Reviews

Cardizem CD

Rx Prescription Required    RxFormulation : 24H ER Capsule

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Generic alternative for Cardizem CD

Diltiazem Hcl

Rx Prescription Required    RxFormulation : 24H ER Capsule

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Diltiazem is employed for the management of hypertension and the prevention of angina, a type of chest pain. By reducing elevated blood pressure, this drug aids in the prevention of strokes, heart attacks, and kidney complications. When taken regularly, diltiazem diminishes the frequency and severity of angina episodes, thus potentially enhancing exercise capacity.

Diltiazem belongs to the class of medications known as calcium channel blockers, which function by inducing relaxation in blood vessels throughout the body and the heart, facilitating smoother blood flow. Diltiazem effectively lowers heart rate, thereby reducing cardiac strain and decreasing blood pressure levels.

Uses and Dosage

Diltiazem is available in oral tablet form, including both regular and extended-release formulations, as well as in extended-release capsules. The frequency of administration depends on the specific product: the regular tablet is typically taken three to four times daily, while the extended-release capsule and tablet are taken once or twice daily. Consult your pharmacist regarding whether diltiazem should be taken with or without food, as instructions may differ for each product.

Consistency is important, take diltiazem at approximately the same time(s) every day. To ensure proper usage. Adhere to the prescribed dosage exactly, neither increasing nor decreasing it, and refrain from taking it more frequently than directed by your doctor.

Extended-release capsules and tablets should be swallowed whole, without chewing or crushing them.

Typically, your doctor will initiate diltiazem treatment with a low dose and gradually increase it, but no more frequently than once every 7 to 14 days for extended-release tablets or capsules, or once every 1 to 2 days for regular tablets.

While diltiazem may help control chest pain, it does not alleviate chest pain during an episode. Your doctor may prescribe a separate medication to be taken when you experience chest pain.

Diltiazem is effective in managing high blood pressure and angina, but it does not provide a cure. It may take up to 2 weeks before experiencing the full benefits of diltiazem. Even if you feel well, continue taking diltiazem as prescribed and not discontinue its use without consulting your doctor.

Side Effects

Some side effects may occur that usually do not need medical attention:

  • dizziness or lightheadedness
  • flushing
  • headache
  • weakness
  • slow heartbeat
  • vomiting
  • diarrhea
  • constipation
  • nasal congestion
  • cough

Inform your healthcare provider immediately if you experience any serious side effects:

  • swelling of the face, eyes, lips, tongue, hands, arms, feet, ankles, or lower legs
  • difficulty breathing or swallowing
  • fainting
  • rash
  • yellowing of the skin or eyes
  • nausea
  • extreme tiredness
  • unusual bleeding or bruising
  • lack of energy
  • loss of appetite
  • pain in the upper right part of the stomach
  • flu-like symptoms
  • increase in frequency or severity of chest pain (angina)


Prior to initiating diltiazem treatment, inform your doctor or pharmacist about any known allergies, including allergies to diltiazem itself, or any other substances. This product may contain inactive ingredients that can trigger allergic reactions or other complications. For further information, consult your pharmacist.

Before using this medication, disclose your complete medical history to your doctor or pharmacist, particularly if you have certain types of heart rhythm issues, liver disease, kidney disease, or heart failure.

This drug has the potential to induce dizziness. The consumption of alcohol or marijuana may intensify dizziness. Refrain from driving, operating machinery, or engaging in activities requiring alertness until you can safely do so.

Older adults may exhibit increased sensitivity to the side effects of this drug, particularly dizziness, constipation, or swelling in the ankles/feet.

During pregnancy, this medication should only be used when clearly necessary. Discuss the potential risks and benefits with your doctor.

This drug passes into breast milk and may have unfavorable effects on nursing infants. Consult your doctor before breastfeeding.

Form and Strength

Cardizem CD is available in the following forms and strengths:

  • Cardizem CD (form):

    • 120mg
    • 180mg
    • 240mg
    • 300mg
    • 360mg
  • diltiazem CD (form):

    • 120mg
    • 180mg
    • 240mg
    • 300mg


What does CD mean in Cardizem CD?

Cardizem CD is designed to release the active ingredient slowly so that it works over 24 hours and can be taken once a day (CD stands for “controlled delivery”).

How long does it take for Cardizem CD to work?

In general, calcium channel blockers (CCBs), like Cardizem, start to work within a few hours of the first dose. But it can take up to 2 to 4 weeks to feel the full benefits of the medication.



Additional information

Generic name:

Diltiazem CD, Diltiazem Cd, Diltiazem HCL, Diltiazem Hcl


24H ER Capsule, Capsule, Prolonged Release Capsule, Prolonged Release Capsules, Prolonger Release Capsule


120mg, 180mg, 240mg, 300mg, 360mg

Quantities Available:

28, 30, 60, 84, 90, 100, 180

Can Drug Store has provided information from third parties intended to increase awareness and does not contain all the information about Cardizem CD (Diltiazem Hcl). Talk to your doctor or a qualified medical practitioner for medical attention, advice, or if you have any concerns about Cardizem CD (Diltiazem Hcl).