Medication info

Iyeon Atenolol Tablets

Prescription medicationApproval withdrawn
Ingredient · strength
Atenolol›Strength being verified
Manufacturer / importer
이연제약(주)
Appearance
White round film-coated tablets
Packaging
30 tablets/bottle, 500 tablets/bottle
Approval status
Approval withdrawn

MFDS item code 201902898 · Approved 2019.05.07

This product's status changed to Approval withdrawn on 2023.05.26. It may no longer be sold, so consult a doctor or pharmacist before taking it.

Summary

Main use
Improvement of hypertension and angina
Who uses it
Adults
Adult dosage
Hypertension: The initial dose for adults is 50 mg of atenolol given orally once a day, either alone or in combination with a diuretic (thiazide class). If no effect is observed within 1-2 weeks, the dosage can be increased to 100 mg once daily. Do not exceed 100 mg per day. Angina: 100 mg per day divided into 1-2 doses. Do not exceed 100 mg per day. Patients with renal impairment: Creatinine clearance

Ingredients

Manufacturer
이연제약(주)

Efficacy & effects

Improvement of hypertension and angina

  • Hypertension
  • angina
View approved original text

Hypertension and angina are representative cardiovascular diseases. This medication works by dilating blood vessels and lowering blood pressure, thereby reducing the burden on the heart. Additionally, it helps supply adequate oxygen and nutrients to the heart muscle, alleviating angina symptoms. Therefore, it is used in the treatment of hypertension and angina.

Dosage and Administration

Adult dosage

Hypertension: The initial dose for adults is 50 mg of atenolol given orally once a day, either alone or in combination with a diuretic (thiazide class). If no effect is observed within 1-2 weeks, the dosage can be increased to 100 mg once daily. Do not exceed 100 mg per day. Angina: 100 mg per day divided into 1-2 doses. Do not exceed 100 mg per day. Patients with renal impairment: Creatinine clearance

Precautions

This medication should not be used by patients allergic to the active ingredient or excipients. It should not be administered to patients with severe bronchial asthma or chronic obstructive pulmonary disease. Patients with diabetic ketoacidosis or metabolic acidosis should also avoid using this medication. It may be dangerous for patients with very low heart rates or cardiac conduction issues. It should not be given to patients in cardiogenic shock, right heart failure due to pulmonary hypertension, or congestive heart failure. This medication should not be used if there is severe hypotension or peripheral circulation dysfunction. Caution is needed for patients at risk of developing thyroid toxicity due to thyroid dysfunction. Patients with hereditary lactose intolerance or related enzyme deficiencies should not take this medication due to the lactose it contains. Patients at risk of bronchial asthma or bronchospasm should use this medication cautiously and may need to use a bronchodilator as well. Patients at risk of congestive heart failure should be monitored closely while receiving this medication. Diabetic patients or those at risk of hypoglycemia should frequently check their blood glucose levels and use caution. Dose adjustments may be necessary for patients with severely impaired liver or kidney function. The elderly should start with a lower dose and be closely monitored. Various side effects such as rash, itching, decreased tear flow, vision disturbances, bradycardia, cold extremities, palpitations, increased heart size, chest tightness, hypotension, coldness in limbs, heart block, sinoatrial block, orthostatic hypotension, leg pain, heart failure, intermittent claudication, Raynaud's phenomenon, confusion, mood changes, nightmares, mental disturbances, hallucinations, sleep disorders, feelings of heaviness, dizziness, orthostatic control issues, insomnia, drowsiness, congestive state, tinnitus, ear pain, and fatigue can occur during treatment; any abnormal symptoms should be reported to healthcare providers immediately. Regular monitoring of heart function, blood pressure, liver, and kidney function tests is required during prolonged use, and discontinuation of this medication should not be abrupt but rather the dosage should be gradually reduced. Patients scheduled for surgery should stop taking this medication 24 hours prior to the procedure and should use methods to minimize cardiac suppression during anesthesia. It is advisable to avoid hazardous activities such as driving or operating machinery during the initial period of administration. This medication may interact with other drugs, so it is essential to inform healthcare providers about any other medications being taken. Women who are pregnant or breastfeeding should carefully consider the use of this medication, especially due to potential effects on the fetus or newborn. Safety in pediatric patients has not been established, so caution is advised. In case of overdose, serious effects such as severe bradycardia, hypotension, bronchospasm, and hypoglycemia may occur, requiring immediate medical treatment. This medication should be kept out of reach of children and stored at temperatures avoiding excessive heat above 25 degrees Celsius.

Side effects and when to seek care immediately

Serious side effects

Hives, severe swelling (edema), chest tightness, difficulty breathing, cold sweat, pallor, severe allergic reactions, severe rash with high fever, blisters, skin peeling, pain in mucous membranes of the mouth/eyes, severe skin reactions, difficulty breathing or shortness of breath, asthma attacks, cough with fever accompanying respiratory issues, breathing problems, yellowing of the skin or eyes (jaundice), extreme lethargy, liver abnormalities (jaundice), sudden

Mild side effects

  • Rash
  • itching
  • decreased tear secretion
  • blurred vision
  • dry eyes
  • bradycardia
  • cold extremities
  • palpitations
  • increased heart size
  • chest tightness
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  • hypotension
  • coldness in limbs
  • heart block
  • sinoatrial block
  • orthostatic hypotension
  • leg pain
  • heart failure
  • intermittent claudication
  • Raynaud's phenomenon
  • confusion
  • mood changes
  • nightmares
  • mental disturbances
  • hallucinations
  • sleep disorders
  • feelings of heaviness
  • dizziness
  • orthostatic control issues
  • insomnia
  • drowsiness
  • congestive state
  • tinnitus
  • ear pain
  • fatigue

Not everyone experiences these, and they can vary from person to person.

Storage

This medication should be stored in a tightly closed container to protect it from air and moisture. It should be safely kept at room temperature between 1 degree and 30 degrees Celsius. Thus, it is advisable to avoid direct sunlight and to not place it in excessively hot or cold locations.

Appearance and packaging

Appearance

White round film-coated tablets

Package unit

30 tablets/bottle, 500 tablets/bottle

Same-ingredient medicines

Even with the same ingredient, strength, dosage form and how it is taken can differ.

Even with the same ingredient, the dose and directions can differ by strength and dosage form. Talk to a doctor or pharmacist before switching from a medication you are already taking.

Questions about this medicine

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For anything that needs medical judgment, consult a doctor or pharmacist.

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This drug information is based on data provided by the Korea Ministry of Food and Drug Safety.
Consult a doctor or pharmacist for accurate dosage, administration, and usage instructions.