Tenormin is a trade name for atenolol, a beta blocker that relieves high blood pressure (hypertension) in adults.
Atenolol, the main active ingredient in Tenormin, belongs to a class of drugs called beta blockers. These drugs can inhibit (block) the activity of the neurotransmitter epinephrine (adrenaline). Epinephrine affects the pressure at which blood travels through vessels to and from the heart. By blocking epinephrine, atenolol can reduce blood pressure, relieving symptoms of conditions such as hypertension and angina (chest pain).
High blood pressure can greatly increase an individual’s risk for heart attack, stroke, irreversible organ damage and complications such as vision loss. It can also prevent the muscles of the heart from receiving enough oxygen, which can cause painful contractions medically known as angina. Tenormin treats both these conditions by reducing overall blood pressure.
Tenormin may also be prescribed after a heart attack to increase the chance of survival.
Tenormin is available as 25 mg, 50 mg and 100 mg oral tablets.
Inactive ingredients in Tenormin tablets include povidone, sodium starch glycolate, microcrystalline cellulose and magnesium stearate.
Dosage of Tenormin will vary according to physician recommendation, medical condition being treated, severity of the condition, response to treatment and possibly age.
Tenormin tablets should be swallowed without meals once or twice a day, or as directed by a physician.
Tenormin should be taken exactly as prescribed. Taking more or less than the prescribed dosage could result in adverse side effects or the medical condition worsening. Carefully read all instructions included in the package before taking Tenormin.
It may take more than a week for the effects of Tenormin to be noticeable. Regularly follow the prescribed dosage regardless of the how the symptoms feel.
Warnings and Precautions
Do not abruptly stop taking Tenormin. Doing so could cause a heart attack, irregular heartbeat (arrhythmia) or even more chest pain. Tenormin doses should be gradually decreased. Talk to a physician if Tenormin treatment needs to be stopped.
Do not take Tenormin if allergic to atenolol, a similar beta blocker or any other ingredients in the drug.
Tenormin may cause harm to infants and unborn babies. Therefore, do not take Tenormin without consulting a physician if pregnant, breastfeeding or attempting to get pregnant.
Tenormin may not be safe for patients with a history of the following conditions: heart failure, heart disease, blood circulation problems, slow heart rate, kidney disease, hyperthyroidism, diabetes, pheochromocytoma and severe allergies.
Tenormin may cause adverse side effects with other hypertension medications, certain prescription or over-the-counter drugs, vitamins and herbal supplements. Disclose all such products being taken to the prescribing physician and ask if they are safe to take with Tenormin.
Tenormin may cause one or more of the following side effects:
Serious side effects include fainting, weight gain, shortness of breath and swelling in hands, feet, ankles, or legs.
Side effects other than mentioned above could occur.
Immediately call a doctor if side effects get worse or last longer than a week.