Senior dosage ages 65 years and older There are no specific recommendations for senior dosing. Older adults may process drugs more slowly. A typical adult dosage may cause levels of the drug to be higher than normal in your body. Dosage for angina chest pain Adult dosage ages 18—64 years Atenolol is often started at 50 mg once a day. Dosage after a heart attack Adult dosage ages 18—64 years When this drug is used after a heart attack, the dosage is highly individualized. It depends on the cause and the effects of the heart attack. Your doctor will monitor your blood pressure and how your heart is responding, and may adjust your dosage.
This drug is often started in the hospital. Atenolol is often dosed at 100 mg per day, given once a day or in two divided doses. The dosage is gradually adjusted if needed. Special dosage considerations For seniors: Seniors may need a smaller dosage of atenolol at first because they can be more sensitive to the way medications act in their body. Also, as people age, they sometimes have a harder time clearing drugs from their body. After a low initial dosage, their dosage may then increase gradually. For people with kidney disease: Kidney disease can make it more difficult for you to clear this drug from your body.
Having kidney disease may affect your dosage. Talk to your doctor about the best dosage for you. Our goal is to provide you with the most relevant and current information. However, because drugs affect each person differently, we can not guarantee that this list includes all possible dosages. Atenolol acts on the autonomic nervous system that controls blood pressure and heart work among others. Certain chemical messengers neurotransmitters as adrenaline, noradrenaline and regulate these processes. The neurotransmitter adrenaline binds to the beta receptors, for example, the heart muscle, increasing the stroke rate, so the blood pressure rises.
Because of its molecular structure similar Atenolol can dock at the binding sites for neurotransmitters and this block of adrenaline, so that mitigates the effects of the endogenous hormone. Thereby, the blood pressure drops. Also, because the excitability of the heart muscle decreases, at the same time the tendency falls to certain forms of cardiac arrhythmia. Up, degradation and excretion of Atenolol The active ingredient Atenolol is absorbed into the blood only halfway out of the intestine after recording via the mouth oral.
There it is converted to a very small extent in intermediate products, but which has no pharmacological effect. After that, the degradation takes place mainly via the kidneys. The degradation products are eventually excreted in the urine. When applied Atenolol? Atenolol is used to treat heart arrhythmias such as atrial fibrillation , and preventively used against ventricular fibrillation. Ventricular fibrillation is a life-threatening disorder of cardiac activity, in barely blood is pumped into the body. So Atenolol is used Atenolol is available as a tablet containing various concentrations of active compound 25mg, 50mg and 100mg. Many cardiovascular disorders once daily is sufficient from a tablet with 25mg active ingredient.
In hypertension Atenolol 50mg a day may be prescribed at the start of therapy. If necessary, the dosage for a week may be increased to 100mg active ingredient per day. The dosage prescribed by the doctor is sure to follow exactly. What are the side effects Atenolol? You can take atenolol either with or without food, but try to take your doses at the same time of day each day as this will help you to remember to take it regularly. The tablets are best swallowed with a drink of water. If you forget to take a dose, take it as soon as you remember unless it is nearly time for your next dose, in which case leave out the missed dose and take the next dose as normal.
Do not take two doses together to make up for a forgotten dose. Getting the most from your treatment Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress. Your doctor is likely to give you dietary and lifestyle advice about eating a healthy diet, not smoking, and taking regular exercise. If so, it is important that you follow the advice you are given. If you drink alcohol, ask your doctor for advice about taking atenolol and alcohol. Atenolol will worsen the effects of alcohol, which will make you feel dizzy.
If you buy any medicines, check with a pharmacist that they are suitable for you to take with atenolol. Some medicines may not be including some anti-inflammatory painkillers, and cold or flu remedies. If you are due to have an operation or dental treatment, it is important to tell the person carrying out the treatment that you are taking a beta-blocker. This is particularly important if you are likely to be given an anaesthetic. If you have diabetes, atenolol can block the symptoms of low blood sugar. Your doctor will advise you about this.
Treatment with atenolol is usually long-term. Continue to take the tablets unless your doctor tells you to stop. Stopping treatment suddenly can cause problems in some people, so your doctor may want you to reduce your dose gradually if this becomes necessary. Can atenolol cause problems? Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with atenolol. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.
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General You can cut or crush the tablet. Keep the medication tightly closed and in a light-resistant container. Store it away from moisture. Self-monitoring Because atenolol can lower blood pressure, your doctor may ask that you periodically check your blood pressure while taking it. Let your doctor know if you experience blood pressure readings that are either too high or too low while taking atenolol. Refills A prescription for this medication is refillable. You should not need a new prescription for this medication to be refilled.
Your doctor will write the number of refills authorized on your prescription. Travel When traveling with your medication: Always carry your medication with you. When flying, never put it into a checked bag. Keep it in your carry-on bag. You may need to show airport staff the pharmacy label for your medication. Always carry the original prescription-labeled container with you. Be sure to avoid doing this when the weather is very hot or very cold. Take the missed dose as soon as you remember. Skip the missed dose if it is almost time for your next scheduled dose.
Do not take extra medicine to make up the missed dose. What happens if I overdose? Seek emergency medical attention or call the Poison Help line at 1-800-222-1222. Overdose symptoms may include extreme weakness or lack of energy, very slow heart rate, shortness of breath, or fainting. What should I avoid while taking atenolol? Follow your doctor's instructions about any restrictions on food, beverages, or activity. Atenolol side effects Get emergency medical help if you have signs of an allergic reaction to atenolol: Call your doctor at once if you have: Common atenolol side effects may include: This is not a complete list of side effects and others may occur. Common Atenolol side effects affecting the cardiovascular system.
It may occur especially at the start of treatment at an unusually slow heartbeat bradycardia , the blood pressure may drop more than desired. Many patients concomitantly a cold sensation on the hands and feet. Especially at the beginning of the treatment with the active ingredient are also dizziness or strong or constipation during treatment with Atenolol. Side effects that are observed occasionally less than one percent of patients , are an inflammation of the conjunctiva of the eye conjunctivitis , muscle cramps, insomnia and an increase in blood sugar levels. Rare triggers Atenolol side effects such as circulatory disorders or cramps finger arteries. Likewise, redness, bleeding in the subcutaneous tissue purpura breathing difficulties and blurred vision possible.
Very rarely, hallucinations, psychoses, confusion, and nightmares. If side effects or discomfort not mentioned in connection with the medication with you here, please search always to your doctor. When should you not take Atenolol? Atenolol should not be used with a hypersensitivity allergic reaction to the active substance or any other beta-blocker with insufficient oxygenation shock in the sinus node syndrome at the heart beating with less than 50 beats per minute Bardykardie if the pH of the blood is too acidic acidosis in advanced circulatory disorders of extremities if antidepressants are taken at the same time eg MAOIs Interaction At the same medication taken as tablets diuretics , antidepressants or certain anesthetics barbiturates increase the hypotensive effect of Atenolol.
In contrast, the blood pressure can increase to dangerous levels if the blood pressure medication is discontinued during concomitant Atenolol application. Insulin increases blood glucose-lowering effect of beta-blockers, which may cause low blood sugar hypoglycemia. At the same typical symptoms of hypoglycemia such as an increased heart rate will be obscured by Atenolol, however. It will give you more information about atenolol and will provide you with a full list of the side-effects which you could experience from taking it. Take atenolol exactly as your doctor tells you to.
It is usually taken once daily, in the morning. Some people taking it for angina may be prescribed two doses a day. Your doctor will tell you which dose is right for you, and the directions for taking it will also be printed on the label of the pack to remind you about what the doctor said. Atenolol tablets are available in three different strengths - 25 mg, 50 mg and 100 mg. Each time you collect a fresh supply of tablets, it's a good idea to check the strength on the packet to make sure they are the strength you are expecting. If you have any questions, please ask your pharmacist to advise you. You can take atenolol either with or without food, but try to take your doses at the same time of day each day as this will help you to remember to take it regularly.
The tablets are best swallowed with a drink of water. If you forget to take a dose, take it as soon as you remember unless it is nearly time for your next dose, in which case leave out the missed dose and take the next dose as normal. Do not take two doses together to make up for a forgotten dose. Getting the most from your treatment Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress. Your doctor is likely to give you dietary and lifestyle advice about eating a healthy diet, not smoking, and taking regular exercise. If so, it is important that you follow the advice you are given.
If you drink alcohol, ask your doctor for advice about taking atenolol and alcohol. Atenolol will worsen the effects of alcohol, which will make you feel dizzy.