Atenolol
Atenolol
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At a Glance
Used in the treatment of certain heart diseases
Can help to lower blood pressure
Slows and regulates heart rate so that the heart can work more efficiently

Atenolol

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At a Glance
Used in the treatment of certain heart diseases
Can help to lower blood pressure
Slows and regulates heart rate so that the heart can work more efficiently

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Atenolol is a prescription medication used to treat certain heart conditions such as arrhythmias. This beta-blocker can also be used to lower blood pressure and treat enlarged hearts in cats. Atenolol functions by slowing and regulating your pet's heart rate to make the heart work more efficiently. It is appropriate for use in dogs, cats, and ferrets.

Atenolol is a beta-blocker that lowers heart rate, blood pressure, and over-activity of the heart, thus allowing for a regular heartbeat and better heart function.

Atenolol, a beta-blocker heart medication, has emerged as a crucial treatment option for certain types of heart disease in pets. Veterinarians often prescribe it because it is known for its efficacy in managing high blood pressure and abnormal heart rhythms. Atenolol is commonly used off-label in veterinary medicine to address various cardiac issues in companion animals.

  • Administration and Dosage:Atenolol for pets is typically administered orally and given by mouth as a tablet. Veterinarians may advise administering the medication with or without food. However, caution is urged when giving Atenolol on an empty stomach, as it may lead to vomiting. Future doses should be administered with food or a treat to mitigate this.

  • Adherence to Veterinarian's Directions:Pet owners must follow their veterinarian's directions meticulously. Atenolol should be given exactly as prescribed, with no missed doses. Abruptly stopping this medication is strongly discouraged, and a gradual tapering approach is recommended to avoid adverse reactions.

  • Onset of Action and Monitoring:Atenolol typically takes effect within 1 to 2 hours of administration. However, pet owners should know that the effects may not be immediately noticeable. Regular veterinary check-ups and laboratory tests may be necessary to monitor the pet's response to the medication and adjust the dosage accordingly.

  • Common Side Effects:While generally well-tolerated, Atenolol may cause common side effects in pets. These include tiredness, vomiting, and/or diarrhea. Pet owners should report any unusual reactions to their veterinarian promptly.

  • Special Considerations for Geriatric Pets:Close monitoring is crucial in geriatric pets, especially those with severe heart disease. Atenolol may result in a low heart rate, low appetite, lethargy, depression, or worsening heart failure. Additionally, caution is advised in pets with low blood pressure, low blood sugar, cough, collapse, or difficulty breathing.

  • Risk Factors and Precautions:Certain risk factors should be considered before administering Atenolol to pets. Hypersensitivity to this class of medications, patients with heart failure, heart block greater than the first-degree, low heart rates, bronchospastic lung disease, and cats with left-sided heart failure due to hypertrophic cardiomyopathy (HCM) require careful consideration. Atenolol should be used with caution in pets with significant kidney disease, diabetes, asthma, certain heart conditions, or a history of gastrointestinal ulcers. Special attention is necessary for pregnant or lactating animals.

Atenolol for pets is valuable in managing various cardiac conditions. However, its administration demands strict adherence to the veterinarian's guidelines, regular monitoring, and a keen awareness of potential side effects and contraindications in specific patient populations. As with any medication, open communication between pet owners and veterinarians is paramount for the animal's overall well-being.

Atenolol is the generic alternative to Tenormin.

The medicine can be used in cats, dogs, and ferrets. The dosage of medication and also the frequency of administration are largely determined by the severity of the condition as well as the nature of response the animal exhibits towards the treatment. The usual dose given to dogs is 0.125 to 0.5 mg per pound (0.25 to 1.0 mg/kg) once to twice a day. The total daily dose is often 6.25 to 25 mg/dog. The usual dose for cats is 1 mg per pound (2 mg/kg) once every day. The total daily dose in cats is often 6.25 to 12.5 mg once or twice daily.

  • Heart & Blood Pressure Pharmacy
  • Oral Application
  • Cat Pet Type
  • Dog Pet Type

What Does Atenolol Do for Cats?
Answer

Atenolol is a beta-blocker prescribed for cats to manage certain cardiovascular conditions. It primarily works by blocking the effects of adrenaline, reducing heart rate and blood pressure. This helps alleviate symptoms associated with hypertrophic cardiomyopathy, a common feline heart condition. Atenolol is specifically employed to treat hypertrophic cardiomyopathy (HCM) in cats. HCM is a thickening of the heart muscles that can impede normal cardiac function. Atenolol aids by lessening the workload on the heart, improving its efficiency, and minimizing symptoms like difficulty breathing and lethargy. Administered orally, this medicine for cats requires careful monitoring, as dosage adjustments may be necessary. It is crucial to follow veterinary instructions diligently. However, caution is warranted, as abrupt discontinuation can lead to adverse effects. Regular veterinary check-ups are essential to assess the cat's response and make any necessary adjustments in treatment.

Can Dogs Take Atenolol?
Answer

Atenolol is occasionally prescribed for dogs, but it's not a first-line treatment. Veterinarians may consider it for specific cardiac conditions in dogs, like arrhythmias or hypertrophic cardiomyopathy. The decision to use the medicine in dogs depends on the individual case and the vet's assessment of the dog's health. Before administering this medicine to dogs, thorough consultation with a veterinarian is imperative. Dosage, duration, and potential side effects should be discussed. Self-administration or abrupt cessation can pose risks to the dog's well-being. It is essential to follow the veterinarian's guidance closely and report any observed changes in behavior or health promptly. In addition to prescribed medications, maintaining a dog's heart health involves a balanced diet and regular exercise. Incorporating heart-healthy treats can be beneficial. Treats containing omega-3 fatty acids, antioxidants, and limited sodium contribute positively to cardiovascular health. However, it's crucial to consult with a vet to ensure the treats align with the specific health needs of the dog.

What Is the Alternative to Atenolol?
Answer

For those needing an alternative to atenolol, other beta-blockers such as metoprolol or propranolol may be considered. These medications share a common mechanism of action, impacting heart rate and blood pressure. However, specific differences in absorption rates and duration of action might influence the choice based on an individual's medical condition. An emerging alternative to atenolol is ivabradine, especially in cases where heart rate variability is a significant consideration. A recent study published in the British Veterinary Association Journals compared the effects of ivabradine and atenolol in healthy cats. Both drugs effectively lowered heart rate, but ivabradine uniquely increased heart rate variability during certain periods, offering a potential advantage in specific cardiovascular conditions. In addition to medication, maintaining a dog's cardiac health involves a balanced diet. Consider incorporating canned dog food that supports cardiovascular well-being. Look for options with quality protein, essential fatty acids, and controlled sodium levels. Always consult with a veterinarian to ensure the chosen diet aligns with the specific health needs of the dog, contributing to overall health.

Can Atenolol Cause Heart Failure?
Answer

There is no evidence to suggest that atenolol directly causes heart failure. Atenolol is typically prescribed to manage specific heart conditions, but its misuse or abrupt discontinuation can have adverse effects. It is crucial for pet owners to follow veterinary guidance closely and report any observed changes in their pet's behavior or health. The medicine is prescribed to manage underlying cardiac conditions in pets, not to induce heart failure, which is often a result of these conditions. The progression of heart failure depends on various factors, including the pet's overall health and the effectiveness of the prescribed treatment. Regular veterinary check-ups and adherence to prescribed medications play a vital role in preventing or managing such conditions in pets. While atenolol is generally well-tolerated by pets, there is a potential for side effects, particularly in older animals or those with advancing heart disease. According to PetMD, these side effects can include a slow heart rate, loss of appetite, low blood pressure, diarrhea, feelings of lethargy, etc. Monitoring for these symptoms is crucial, and any observed changes should be promptly reported to the veterinarian.

What to Avoid When Taking Atenolol?
Answer

As per VCA Animal Hospitals, there are certain factors that pose risks associated with this medication. The use of Atenolol is contraindicated in pets displaying hypersensitivity to this medication class. It is not recommended for patients experiencing heart failure, heart block beyond the first degree, low heart rates, or bronchospastic lung disease. Specifically for cats with hypertrophic cardiomyopathy leading to left-sided heart failure, Atenolol is discouraged. Exercise caution when considering Atenolol for pets with notable kidney disease, diabetes, asthma, specific heart conditions, or a history of gastrointestinal ulcers. Dogs possessing certain ADRB1 genes may exhibit heightened sensitivity to this medication. Additionally, prudence is necessary when administering Atenolol to pregnant or lactating animals. Beyond medication, consider incorporating dog foods that promote cardiovascular and eye health. Look for dog treats with essential nutrients like omega-3 fatty acids, antioxidants, and taurine. These elements contribute positively to cardiovascular and ocular well-being. Always consult with a veterinarian to ensure the chosen diet aligns with the specific health needs of the dog.

How Do I Give Atenolol to Cats with Heart Disease?
Answer

According to Takala, DVM in Veterinary Medicine from the University of Saskatoon, giving Atenolol to a cat can pose a challenge due to its highly bitter taste. This taste could result in drooling and reluctance. It's crucial to prevent the cat from tasting the tablet. Seeking guidance from the vet on effective pilling techniques is essential. If the cat is cooperative, manual pilling without the tablet's taste being detected is preferred. Using butter or oil might assist in this process. Alternatively, pill pockets like Greenies can be employed to disguise the taste, and some cats consider them a tasty treat. Other options involve concealing the pill in canned tuna, salmon, or raw meat. Liquid forms are not recommended due to their unpleasant taste, potentially causing cats to avoid the medication.

Atenolol 25mg

Atenolol belongs to general class of cardiac drug that is used in veterinary medicine and is indicated in treating certain heart diseases like arrythmias. During the course, the medicine controls the heart rate, lowers blood pressure and deals with rhythm irregularity in animals like cats, dogs and ferrets. In certain cases, the medication is also used in cats suffering from enlarged hearts. Atenolol, the active ingredient in the medicine is a beta-blocker, which effectively deals with certain conditions affecting the heart. When administered, this oral medication helps in controlling abnormalities in the heart as well as in the blood pressure by blocking certain nervous system impulses. The medicine is available by prescription in capsule form.

Side effects may include lethargy, difficulty exercising, low blood pressure which would cause fainting, weakness, or dizziness, loss of appetite, nausea, diarrhea, behavior change, and low blood sugar.

Atenolol may constrict the bronchi, resulting in coughing, wheezing, or difficulty breathing.

An improper dose of Atenolol can cause the heart rate to be too slow.

If your pet experiences an allergic reaction (symptoms may include swelling, hives, difficulty breathing, itching, etc.) or any of the above symptoms, contact your veterinarian.

Atenolol should not be used in pets with heart block, bradycardia (slow heart rate), and some types of heart failure. Use with caution in diabetic pets or those with kidney disease.

Use with caution in animals with some types of lung disease such as asthma.

Atenolol should not be used in pets allergic to it, or pets who have had reactions to other beta-blockers.

Possible interactions may occur with the following drugs: albuterol (Ventolin), anesthetic agents, cimetidine, epinephrine, furosemide, hydralazine, insulin, metaproterenol, nonsteroidal anti-inflammatories (ex. aspirin, carprofen), other heart medications (digoxin, diltiazem, verapamil), phenothiazines (tranquilizers), phenylpropanolamine, prazosin, and terbutaline.

Tell your veterinarian about any other medications, vitamins, or supplements that your pet is taking.

In no case should the medicine be tried on animals that are hypersensitive to atenolol or any other beta-blockers. Special care must be taken in using the medication in animals undergoing any kind of kidney, lungs or heart abnormalities or diabetic attacks. It is not advised to give the medication with metaproterenol, terbutaline, epinephrine and phenylpropanolamine, as this may result in reduced effects. Care must be taken in using the medicine in an animal that is already under another medication. Medication overdose might bring about certain adverse reactions like lethargy, cough, breathing problems or even change in the behavior of the animal.

Certain animals might tend to develop side effects to the medicine when administered. The reported side effects include lethargy, hypoglycemia, depression and hypotension. There can also be a drop in the heart rate and even diarrhea, though only in rare cases.

Follow the directions provided by your veterinarian.

This medication is usually given once or twice daily to dogs and once daily to cats.

Ask your veterinarian or consult with one of our pet care specialists at 1-800-844-1427.

This information is for informational purposes only and is not meant as a substitute for the professional advice of, or diagnosis or treatment by, your veterinarian. Always seek the advice of your veterinarian or other qualified professional with any questions you may have regarding a medical condition. Never disregard or delay seeking professional advice due to what you may have read on our website. Our medications are FDA approved and/or EPA regulated when and as required by law.

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