Drug-labels.com

Teva-Diltiazem HCl ER: Uses, Side Effects and Dosage

Updated:
Facts
Status:
Prescription (Rx) Current status: Dormant
Strength:
120 mg, 180 mg, 240 mg, 300 mg, 360 mg
Active ingredient:
ATC code:

Patient Medication Information: uses, side effects, how to take - Teva-Diltiazem HCl ER

What TEVA-DILTIAZEM HCL ER IS used for:

TEVA-DILTIAZEM HCL ER is used in adults to:

  • treat of mild to moderate high blood pressure.
  • control chest pain that most often occurs with physical activity or emotional stress (chronic stable angina). It can be used with other chest pain medicines when those medicines do not provide enough benefit on their own. TEVA-DILTIAZEM HCL ER is normally used in patients who have tried other treatments for their chest pain, but did not receive benefits, or had bad side effects.

How TEVA-DILTIAZEM HCL ER workS

TEVA-DILTIAZEM HCL ER belongs to the group of drugs called “calcium channel blockers” or “calcium antagonists”.

  • TEVA-DILTIAZEM HCL ER relaxes the arteries, which allows blood to flow freely through them. This helps to lower blood pressure.
  • TEVA-DILTIAZEM HCL ER reduces the amount of oxygen that your heart muscle needs. This helps control chest pain.

What are The ingredients in TEVA-DILTIAZEM HCL ER are:

Medicinal ingredients: Diltiazem Hydrochloride

Non-medicinal ingredients: Black Iron Oxide, Eudragit, Gelatin, Hydroxypropylmethylcellulose, Magnesium Stearate, Microcrystalline Cellulose, Polysorbate, Povidone, Simethicone, Sucrose Stearate, Talc, and Titanium Dioxide.

TEVA-DILTIAZEM HCL ER may also contain one or more of the following dyes: FD&C Blue #1, FD&C Red #40, D&C Red #28, FD&C Green #3.

TEVA-DILTIAZEM HCL ER comes in the following dosage forms:

Extended-release capsules: 120 mg, 180 mg, 240 mg, 300 mg and 360 mg.

Do not use TEVA-DILTIAZEM HCL ER if:

  • you are allergic to diltiazem or any other ingredients in TEVA-DILTIAZEM HCL ER or its container.
  • you have any heart rhythm disorders and do not have a pacemaker.
  • you have very low blood pressure (less than 90 mmHg systolic).
  • you have a very slow heartbeat (less than 40 beats/minute).
  • you have had a heart attack and have fluid in your lungs as a result of heart failure.
  • you are pregnant or plan to become pregnant.
  • you are a woman of child-bearing potential, unless you and your healthcare professional have decided you should take TEVA-DILTIAZEM HCL ER.
  • you are breastfeeding or planning to breastfeed.
  • you are taking the following medicines:

    • dantrolene, used to treat severe muscle spasms or severe fever;
    • ivabradine, used to treat heart failure;
    • lomitapide mesylate, used to treat high blood cholesterol.

To help avoid side effects and ensure proper use, talk to your healthcare professional before you take TEVA-DILTIAZEM HCL ER. Talk about any health conditions or problems you may have, including if you:

  • have heart, liver or kidney disease.
  • had a recent heart attack.
  • have high blood sugar or diabetes.
  • are at risk of developing an intestinal obstruction.
  • are 65 years of age or older.
  • have a history of heart failure, new shortness of breath, slow heartbeat or low blood pressure. Cases of kidney injury in patients with such conditions have been reported.
  • have asthma or other breathing problems. TEVA-DILTIAZEM HCL ER may cause your symptoms to get worse after a dose increase.

Other warnings you should know about:

TEVA-DILTIAZEM HCL ER can cause serious side effects, including:

  • Kidney problems: TEVA-DILTIAZEM HCL ER can cause kidney problems, even at prescribed doses. You are at higher risk if you have heart failure, a very slow heartbeat or very low blood pressure.
  • Hyperglycemia (high blood sugar): TEVA-DILTIAZEM HCL ER may affect your blood sugar. If you have diabetes, closely monitor your blood sugar while taking TEVA-DILTIAZEM HCL ER and report any unusual results to your healthcare professional.

See the Serious side effects and what to do about them table for more information on these and other serious side effects.

Surgery: Tell any doctor, dentist, pharmacist or healthcare professional that you see, that you are taking this medicine. This is especially important if you are planning to have surgery (including dental procedures).

Pregnancy:

  • Avoid becoming pregnant while you are taking TEVA-DILTIAZEM HCL ER. If you are able to get pregnant, you should use effective birth control (contraception) during your treatment. Talk to your healthcare professional about the best kind of birth control to use while you are taking TEVA-DILTIAZEM HCL ER.
  • If you take TEVA-DILTIAZEM HCL ER during pregnancy, it may harm your unborn baby. Your healthcare professional will discuss the risks with you.
  • If you discover that you are pregnant, stop taking TEVA-DILTIAZEM HCL ER and tell your healthcare professional right away.

Breastfeeding: TEVA-DILTIAZEM HCL ER passes into breast milk and may harm your baby. Do not breastfeed during treatment with TEVA-DILTIAZEM HCL ER. Talk to your healthcare professional about ways to feed your baby during this time.

Adults (65 years of age or older): Side effects like swelling of the arms or legs, irregular heartbeat, dizziness, skin rash and frequent urination may happen more often. Your healthcare professional might adjust your dose of TEVA-DILTIAZEM HCL ER. They will monitor your health during and after treatment.

Checks-up and testing:

  • You will have regular visits with your healthcare professional while you are taking TEVA-DILTIAZEM HCL ER to monitor your health. They will:

    • do blood and urine tests to check your liver and kidney health, and the level of sugar in your blood;
    • check your lungs and verify if you have any breathing problems.
  • TEVA-DILTIAZEM HCL ER can cause abnormal blood test results. Your healthcare professional will decide when to perform blood tests and will interpret the results.

Tell your healthcare professional about all the medicines you take, including any drugs, vitamins, minerals, natural supplements or alternative medicines.

Serious Drug Interactions

Do not take TEVA-DILTIAZEM HCL ER with:

  • dantrolene, used to treat severe muscle spasms or severe fever;
  • ivabradine, used to treat heart failure;
  • lomitapide mesylate, used to treat high blood cholesterol.

Serious drug interactions with TEVA-DILTIAZEM HCL ER include:

  • medicines used to prevent and treat blood clots (Direct Oral Anticoagulants (DOACs)) such as dabigatran, rivaroxaban, apixaban.

Taking TEVA-DILTIAZEM HCL ER with any of these medicines may cause serious drug interactions. Ask your healthcare professional if you are unsure you are taking these medicines.

The following may also interact with TEVA-DILTIAZEM HCL ER:

  • medicines used to treat fungal infections with a name ending in “azole”;
  • medicines used to treat bacterial infections, such as rifampin, erythromycin, clarithromycin;
  • medicines used to treat high blood pressure, such as alpha antagonists, beta blockers;
  • heart medications, such as amiodarone, digoxin, digitalis, flecainide, nifedipine, propafenone, quinidine, verapamil;
  • medicines used to treat chest pain (angina), such as short or long acting nitrates;
  • medicines used to control seizures, such as carbamazepine, phenytoin, phenobarbital;
  • medicines used to lower blood cholesterol, such as “statins”;
  • medicines used to reduce stomach acid and treat ulcers in the stomach or intestines, such as cimetidine, ranitidine;
  • medicines used to treat inflammation, such as corticosteroids (including methylprednisolone);
  • acetylsalicylic acid (ASA, or ASPIRIN) or medicines used to prevent blood clots, such as ticagrelor, cilostazol, clopidogrel, dipyridamole, ticlopidine, warfarin;
  • sleeping pills, such as benzodiazepines (midazolam, triazolam);
  • anesthetics;
  • cyclosporine, used to control the immune system;
  • lithium, used to treat bipolar disorder;
  • imipramine, used to treat depression;
  • theophylline, used to treat asthma or other lung diseases;
  • terfenadine, used to treat allergies;
  • ritonavir, used to treat HIV/AIDS;
  • products that contain calcium such as multivitamins with minerals;
  • X-ray contrast agents.

Alcohol

Drinking alcohol while taking TEVA-DILTIAZEM HCL ER may cause low blood pressure and dizziness when you go from lying or sitting to standing up. This is more likely to occur after the first dose or when the dose is increased. Tell your doctor if you experience dizziness, light-headedness, fainting, decreased blood pressure or increased heart rate.

Grapefruit juice

Drinking grapefruit juice while taking TEVA-DILTIAZEM HCL ER may cause headache, irregular heartbeat, edema (swelling), unexplained weight gain, and chest pain. Tell your doctor if this happens to you. Your doctor may recommend that you avoid grapefruit juice while taking TEVA-DILTIAZEM HCL ER.

How to take TEVA-DILTIAZEM HCL ER:

  • Take TEVA-DILTIAZEM HCL ER exactly as your healthcare professional tells you.
  • TEVA-DILTIAZEM HCL ER is taken once a day at about the same time every day.
  • DO NOT chew or crush TEVA-DILTIAZEM HCL ER capsules.

Usual dose:

High Blood Pressure: the usual starting dose is 180 to 240 mg once a day. 120 mg a day may be used in some patients. Maximum dose: 360 mg a day.

Chest Pain (angina): your doctor will decide the best dose for you. The usual starting dose is 120 mg to 180 mg once a day. Your dose may be slowly increased (over 7 to 14 days) up to 360 mg once a day.

Overdose:

Signs of an overdose with TEVA-DILTIAZEM HCL include:

  • very slow or irregular heartbeat.
  • very low blood pressure.
  • kidney problems.
  • heart does not pump blood as well as it should or suddenly stops beating.

If you think you, or a person you are caring for, have taken too much TEVA-DILTIAZEM HCL ER, contact a healthcare professional, hospital emergency department, or regional poison control centre immediately, even if there are no symptoms.

Missed Dose:

If you miss a dose, take it as soon as possible. However, if it is almost time for the next dose, skip the missed dose and take your next dose as scheduled. Do not take two doses at the same time.

What are Possible side effects from using TEVA-DILTIAZEM HCL ER:

These are not all the possible side effects you may feel when taking TEVA-DILTIAZEM HCL ER. If you experience any side effects not listed here, tell your healthcare professional.

  • Headache, dizziness, malaise;
  • Nausea (feeling like vomiting);
  • Flushing (facial redness) or feeling unusually warm;
  • Rash;
  • Temporary swelling;
  • Unusual tiredness and weakness;
  • Upset stomach or indigestion.

Serious side effects and what to do about them

Serious side effects and what to do about them
Serious side effects and what to do about them
Symptom / effectTalk to your healthcare professionalStop taking drug and get immediate medical help
Symptom / effectTalk to your healthcare professionalStop taking drug and get immediate medical help
Symptom / effectTalk to your healthcare professionalStop taking drug and get immediate medical help
Only if severeIn all cases
Only if severeIn all cases
Only if severeIn all cases
COMMON
Allergic reaction: rash, hives, swelling of the face, lips, tongue√
or throat, difficulty swallowing or breathing
Fast, slow or irregular heartbeat√
Hypotension (low blood pressure): dizziness, fainting, light-headedness, blurred vision, nausea, vomiting, fatigue (may occur when you go from lying or sitting to standing up).√
Peripheral edema: (swelling of the legs or hands): swollen or puffy legs, ankles or hands, feeling heavy, achy or stiff√
Respiratory tract infection: (a cold): runny or stuffy nose, sore throat, cough, sinus congestion, body aches, headache, sneezing, fever, generally feeling unwell√
UNCOMMON
Angina (chest pain): discomfort in the shoulder, arm, back, throat, jaw or teeth; pain or pressure in the chest√
Depression: (sad mood that won’t go away): difficulty sleeping or sleeping too much, changes in appetite or weight, feelings of worthlessness, guilt, regret, helplessness or hopelessness, withdrawal from social situations, family, gatherings and activities with friends, reduced libido (sex drive) and thoughts of death or suicide. If you have a history of depression, your depression may become worse√
Eye problems: blurred vision, loss of vision in the eye, increased sensitivity of the eyes to light, eye pain or redness, swelling and itching of the eyelids√
Heart block (a disease in the electrical system of the heart): light-headedness, fainting, irregular heartbeat√
Heart failure: shortness of breath, fatigue and weakness, leg swelling in legs, ankles and feet, cough, lack of appetite, nausea, rapid or irregular heartbeat, reduced ability to exercise√
Hyperglycemia: (high blood sugar): increased thirst and hunger, frequent urination, thirst, and hunger headache, blurred vision, fatigue√
RARE
Kidney problems: nausea, vomiting, fever, swelling of extremities, fatigue, thirst, dry skin, irritability, dark urine, increased or decreased urine output, blood in the urine, rash, weight gain (from retaining fluid), loss of appetite, abnormal blood test results, mental status changes (drowsiness, confusion, coma)√
Liver problems: yellowing of the skin or eyes, dark urine, stomach pain or swelling, nausea, vomiting, unusual tiredness√
Severe skin reactions: fever, severe rash, swollen lymph glands, flu-like feeling, blisters and peeling skin that may start in and around the mouth, nose, eyes and genitals and spread to other areas of the body, yellow skin or eyes, shortness of breath, dry cough, chest pain or discomfort, feeling thirsty, urinating less often, less urine√

If you have a troublesome symptom or side effect that is not listed here or becomes bad enough to interfere with your daily activities, tell your healthcare professional.

Reporting Side Effects

You can report any suspected side effects associated with the use of health products to Health Canada by:

  • Visiting the Web page on Adverse Reaction Reporting (https://www.canada.ca/en/health-canada/services/drugs-health-products/medeffect-canada/adverse-reaction-reporting.html) for information on how to report online, by mail or by fax; or
  • Calling toll-free at 1-866-234-2345.

NOTE: Contact your health professional if you need information about how to manage your side effects. The Canada Vigilance Program does not provide medical advice.

Storage:

  • Store TEVA-DILTIAZEM HCL ER capsules at room temperature (15-30ºC).
  • Avoid excessive humidity.
  • Keep out of reach and sight of children.

If you want more information about TEVA-DILTIAZEM HCL ER:

  • Talk to your healthcare professional
  • Find the full product monograph that is prepared for healthcare professionals and includes this Patient Medication Information by visiting the Health Canada website: (https://www.canada.ca/en/health-canada/services/drugs-health-products/drug-products/drug-product-database.html; the manufacturer’s website www.bauschhealth.ca, or by calling 1-800-361-4261.

Last Revised: AUG 13, 2025

About this document

Source: Health Canada – Drug Product Database (DPD) and product monographs · DIN (Drug Identification Number): 02271605

Revision date stated in the text: August 13, 2025

Found a mistake? Write to us via the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Drug information for Teva-Diltiazem HCl ER

Rx or OTC
Prescription (Rx)?
DIN 02271605, 02271613, 02271621, 02271648, 02271656
Schedule(s) PRESCRIPTION
Active ingredient(s) Diltiazem hydrochloride
Dosage form(s) Capsule (Extended-Release)
Route(s) of administration Oral
Drug class (WHO ATC)
  1. C Cardiovascular system drugs
    1. C08 Calcium channel blockers
      1. C08D Selective calcium channel blockers with direct cardiac effects
        1. C08DB Benzothiazepine derivative selective calcium channel blockers with direct cardiac effects
          1. C08DB01 Diltiazem
Company BAUSCH HEALTH, CANADA INC.
Current status Dormant
Current status date July 31, 2026
Strengths and forms
DIN Strength Dosage form(s) Current status
02271605 120 MG Capsule (Extended-Release) Dormant July 31, 2026
02271613 180 MG Capsule (Extended-Release) Dormant July 31, 2026
02271621 240 MG Capsule (Extended-Release) Dormant July 31, 2026
02271648 300 MG Capsule (Extended-Release) Dormant July 31, 2026
02271656 360 MG Capsule (Extended-Release) Dormant July 31, 2026

Source: Health Canada – Drug Product Database (DPD) and product monographs, data as of November 1, 2026. Data from the Health Canada Drug Product Database, as published there. Not a substitute for the advice of a doctor or pharmacist.