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What does ER mean in diltiazem?

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William Harris

Updated on March 01, 2026

What does ER mean in diltiazem?

Diltiazem ER Tablet, Extended Release 24 Hr.

What is the difference between diltiazem ER and diltiazem CD?

These medicines both contain an active ingredient called diltiazem hydrochloride. The difference between these is that 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”).

When is the best time of day to take diltiazem ER?

Extended-release diltizem capsules should be taken on an empty stomach (this means one hour before food or two hours after food). Most other diltiazem formulations can be taken either with or without food; however, you should always check the instructions on the label.

Is diltiazem ER the same as diltiazem XR?

Diltiazem is a calcium channel blocker that is used to treat hypertension (high blood pressure) or angina (chest pain)….Similar Drugs.

Generic ExamplesSupplied AsStrength
DilTIAZem (Eqv-Dilacor XR)Capsule ER 24Hr Degradable240 Mg180 Mg120 Mg

What are the worst side effects of diltiazem?

Dizziness, lightheadedness, weakness, nausea, flushing, constipation, and headache may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. To lower the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

What drugs should not be taken with diltiazem?

Examples of affected drugs include aprepitant/fosaprepitant, asunaprevir, buspirone, colchicine, flibanserin, ivabradine, lomitapide, certain benzodiazepines (triazolam, midazolam), among others. Some products have ingredients that could raise your heart rate or blood pressure.

Can diltiazem cause weight gain?

Heart failure has gotten worse in some people taking this drug. If you have heart failure, talk with your doctor. Call your doctor right away if you have shortness of breath, a big weight gain, or swelling in the arms or legs. A severe skin reaction (Stevens-Johnson syndrome/toxic epidermal necrolysis) may happen.

Should I take diltiazem in the morning or at night?

Diltiazem works by lowering your blood pressure and makes it easier for your heart to pump blood around your body. You can take diltiazem at any time of day. Try to make sure it’s around the same time or times every day. Common side effects include swollen hands, ankles or feet, headaches and constipation.

Do you take diltiazem ER with or without food?

You can take diltiazem with or without food. Swallow diltiazem tablets or capsules whole, usually with a glass of water. Do not chew or crush them. If you find tablets or capsules difficult to swallow, speak to a pharmacist or doctor, as there may be other options.

Can you take vitamin D with diltiazem?

Avoid taking high doses of vitamin D with this heart medication. High doses of vitamin D can cause hypercalcemia, which increases the risk of fatal heart problems with digoxin. Diltiazem (Cardizem, Tiazac, others). Avoid taking high doses of vitamin D with this blood pressure drug.

Does diltiazem make you pee?

Diltiazem did not cause tachycardia in either strain. Moreover, hypotensive doses of diltiazem acutely increased urinary excretion of sodium as well as urine volume in saline-loaded SHR and WKY.