atenolol (Tenolol (12.5 mg)) (Tenolol (12.5 mg)) blocks beta-1 receptors, which are present on the heart. This prevents the action of nerve chemicals adrenaline and noradrenaline on the heart. As a result, heart beats at a slower rate and with lesser force, and thus pumps out lesser blood into blood vessels. This action of atenolol reduces blood pressure in the hypertensive patients. Since the heart treated with atenolol beat slowly and with less force, it uses lesser energy thus relieving pain in angina and also reduces the risk of heart attack.
The information provided on this page is intended to serve as a comprehensive resource and should not be a substitute to professional medical advice. If you have concerns it is always best to speak with a healthcare professional.
Atenolol is used to treat hypertension and angina and in stable heart attack patients to prevent death.
What should be the dose and frequency?
The dosage of the drug varies as per the medical condition. • In acute heart attack patient: Oral therapy with atenolol must be started once the patient is in a stable condition following the intravenous atenolol for acute heart attack. First oral dose (50 mg) must be given after 10 minutes of the last intravenous dose. Another 50 mg dose should be given after 12 hours. Then a 100 mg must be given once a day or 50 mg twice a day for 6 to 9 days or until discharge from the hospital. • For hypertension or angina: 50 mg once daily. Dose may be increased to 100 mg once daily after one-two weeks.
What are the common side effects of Tenolol (12.5 mg)
• Central Nervous System- Headache, fatigue, dizziness, hallucinations, confusion and sleep disturbances.
• Gastrointestinal - Diarrhea and nausea.
• Respiratory - Wheezing and shortness of breath.
• Others: Lack of sexual drive, impotence, and erectile dysfunction.
How to use Tenolol (12.5 mg)?
• Take the tablet with water. • Taking the drug after meal is advisable to reduce chances of stomach upset. However, the drug can be taken empty stomach. • Never stop taking the drug without consulting your prescribing doctor. Abrupt cessation may cause severe health problems.
In which conditions should Tenolol (12.5 mg) be avoided?
Atenolol is absolutely contraindicated in the patients with the following conditions: • Clinical depression • Known allergy to the drug • Second or third degree heart block • Persistent low heart rate (bradycardia) • Poor blood circulation due to heart failure • Tumour of adrenal gland called pheochromocytoma • Pregnancy • Breast feeding mother
Missed a Dose?
• Take the drug as soon as you remember. • Never take two doses together. • If it is less than 8 hours until the next dose, skip the missed dose.
What are the Precautions needed with Tenolol (12.5 mg)
• Consult your doctor before any surgery or dental procedure. Atenolol may be required to be stopped before any such treatment.
• The drug may block the symptoms of low blood glucose levels. Diabetic patients must take extra care while using this drug.
• Atenolol interacts with many drugs. Make sure your doctor knows all the drugs you are taking before starting the treatment with atenolol.
• Patient may develop an allergic reaction.
Are there any additional Precautions?
The drug should be used with extreme precaution if the patient is having any of these conditions: • Occasional numbness and tingling in the fingers. • Asthma. • Chronic obstructive pulmonary disease (COPD). • Diabetes, since it may mask the effects of low blood sugar levels. • Hyperthyroidism, or high thyroid hormone levels. • Kidney function problems, since the drug is eliminated from the body in the urine • Liver function problems. • Skin condition called psoriasis. • Muscle weakness known as myasthenia gravis. Regular blood pressure and blood sugar monitoring are recommended in the patient taking atenolol and also having any of the above conditions.
Drug Interactions of Tenolol (12.5 mg)
Atenolol should be avoided with: • Other beta blockers due to additive effects. • Other drugs that can slow down the heart like verapamil, digitalis, amiodarone and diltiazem. • Drugs used in the treatment of asthma due to opposite effects on the bronchi. • Antidiabetes medications since atenolol can block the signs of hypoglycemia. • Drugs that act on alpha receptors. Along with alpha agonists like ephedrine, it can produce excessive rise in blood pressure, while with alpha blockers like prazosin, it can result in excess fall in blood pressure. • NSAIDs like ibuprofen and naproxen, which may block the effect of atenolol on blood pressure. • Anticholinesterase drugs used in Alzheimer's disease like rivastigmine due to additive effect on the heart and blood pressure. • Drugs that lower blood pressure and increase potassium levels like chlorthiazide. • Other drugs that may lower blood pressure like antihypertensive medications, aldesleukin, and barbiturates.
At What Temperature Should it be Stored?
Store the drug in a cool, dry place away from direct sunlight. Keep out of the reach of children.
Schedule : H Prescription drugs - Drugs to be sold only under the prescription of a Registered Medical Practitioner.
Q: Are there any long-term side effects associated with Tenolol (12.5 mg)?
A: Long-term use of Tenolol (12.5 mg) is generally safe . It works best when taken long term for heart conditions or migraine prevention (1✔✔Trusted Source Long-term efficacy of atenolol for atrioventricular reciprocating tachycardia in children less than 5 years old
Q: Does Tenolol (12.5 mg) cause frequent urination?
A: No, Tenolol (12.5 mg) is a Beta blocker, not a diuretic (water pill). Diuretics can cause frequent urination. Tenolol (12.5 mg) should not cause you to urinate more frequently than usual (2✔✔Trusted Source Atenolol
Q: Is it safe to exercise while taking Tenolol (12.5 mg)?
A: Yes, you can exercise because beta blockers slow the heart rate, preventing the typical increase in heart rate associated with exercise. But you will not be able to achieve your target heart rate, which is the number of heartbeats per minute that you typically aim for when exercising (3✔✔Trusted Source The Impact of beta blockade on the cardio-respiratory system and symptoms during exercise
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1. Long-term efficacy of atenolol for atrioventricular reciprocating tachycardia in children less than 5 years old - (https://pubmed.ncbi.nlm.nih.gov/14648002/ )
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