Tenormin (Intravenous)

Atenolol injection is used to lower the risk of death from an acute heart attack. It is given to individuals who have already experienced a heart attack.

This medicine is a beta-blocker. It works by influencing how the body responds to nerve signals in certain areas, such as the heart. As a result, the heart beats more slowly and blood pressure decreases. When blood pressure goes down, more blood and oxygen reach the heart.

This medicine is available only with your doctor's prescription.

Your doctor will provide you with a limited number of doses of this medicine, and then you will be changed to an oral medicine that works in the same way. If you have any questions about this, speak to your doctor.

In deciding to use a medicine, you and your doctor must weigh the risks of taking the medicine against the benefits it will provide. For this medicine, consider the following:

Allergies

Inform your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also, let your healthcare professional know if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, carefully read the label or package ingredients.

Pediatric

There have not been appropriate studies done on the effects of atenolol injection in children. Its safety and effectiveness for this age group have not been established.

Geriatric

Current studies have not shown any specific problems that would limit the use of atenolol injection in older adults. However, elderly patients are more likely to have age-related liver, kidney, or heart issues, which may require careful monitoring and a dosage adjustment when receiving atenolol injection.

Breast Feeding

There are not enough studies in women to determine the risk to infants when using this medication during breastfeeding. Consider the potential benefits against the possible risks before using this medication while breastfeeding.

Interactions with Medicines

Some medicines should not be used together at all, while in other cases, two different medicines may be used together even if an interaction might happen. In these situations, your doctor may need to adjust the dose or take other precautions. It is especially important for your healthcare professional to know if you are taking any of the medicines listed below when you are receiving this medicine. The following interactions have been selected based on their potential significance and are not necessarily all-inclusive.

Using this medicine with any of the following medicines is usually not recommended but may be necessary in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

• Albuterol
• Ceritinib
• Clonidine
• Crizotinib
• Darunavir
• Diltiazem
• Dronedarone
• Fenoldopam
• Fexinidazole
• Fingolimod
• Formoterol
• Indacaterol
• Iohexol
• Lacosamide
• Levalbuterol
• Olodaterol
• Ponesimod
• Rivastigmine
• Salmeterol
• Siponimod
• Terbutaline
• Verapamil
• Vilanterol

Using this medicine with any of the following medicines may increase the risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

• Acarbose
• Aceclofenac
• Acemetacin
• Acetyldigoxin
• Albiglutide
• Alfuzosin
• Alogliptin
• Amtolmetin Guacil
• Aspirin
• Bromfenac
• Bufexamac
• Bunazosin
• Canagliflozin
• Celecoxib
• Chlorpropamide
• Choline Salicylate
• Clonixin
• Dapagliflozin
• Deslanoside
• Dexibuprofen
• Dexketoprofen
• Diclofenac
• Diflunisal
• Digitoxin
• Digoxin
• Dipyrone
• Disopyramide
• Doxazosin
• Droxicam
• Dulaglutide
• Empagliflozin
• Ertugliflozin
• Etodolac
• Etofenamate
• Etoricoxib
• Exenatide
• Felbinac
• Fenoprofen
• Fepradinol
• Feprazone
• Floctafenine
• Flufenamic Acid
• Flurbiprofen
• Glimepiride
• Glipizide
• Glyburide
• Ibuprofen
• Indomethacin
• Insulin Aspart, Recombinant
• Insulin Degludec
• Insulin Detemir
• Insulin Glargine, Recombinant
• Insulin Glulisine
• Insulin Human Inhaled
• Insulin Human Isophane (NPH)
• Insulin Human Regular
• Insulin Lispro, Recombinant
• Ketoprofen
• Ketorolac
• Linagliptin
• Liraglutide
• Lixisenatide
• Lornoxicam
• Loxoprofen
• Lumiracoxib
• Meclofenamate
• Mefenamic Acid
• Meloxicam
• Metformin
• Metildigoxin
• Miglitol
• Morniflumate
• Moxisylyte
• Nabumetone
• Naproxen
• Nateglinide
• Nepafenac
• Niflumic Acid
• Nimesulide
• Nimesulide Beta Cyclodextrin
• Oxaprozin
• Oxyphenbutazone
• Parecoxib
• Phenoxybenzamine
• Phentolamine
• Phenylbutazone
• Piketoprofen
• Pioglitazone
• Piroxicam
• Pramlintide
• Pranoprofen
• Prazosin
• Proglumetacin
• Propyphenazone
• Proquazone
• Quinidine
• Repaglinide
• Rofecoxib
• Rosiglitazone
• Salicylic Acid
• Salsalate
• Saxagliptin
• Sitagliptin
• Sodium Salicylate
• St John's Wort
• Sulindac
• Tamsulosin
• Tenoxicam
• Terazosin
• Tiaprofenic Acid
• Tolazamide
• Tolbutamide
• Tolfenamic Acid
• Tolmetin
• Trimazosin
• Urapidil
• Valdecoxib
• Vildagliptin

Interactions with Food/Tobacco/Alcohol

Some medicines should not be taken at the same time as food or certain types of food because interactions may occur. Drinking alcohol or using tobacco with certain medicines may also cause interactions. Talk to your healthcare professional about using your medicine with food, alcohol, or tobacco.

Other Medical Problems

Other medical issues may affect how you can use this medicine. Be sure to tell your doctor if you have any other medical problems, especially:

• Bradycardia (slow heartbeat) or
• Heart block or
• Heart failure or
• Untreated pheochromocytoma (adrenal gland tumor)—Should not use in patients with these conditions.

• Diabetes or
• Hyperthyroidism (overactive thyroid) or
• Hypoglycemia (low blood sugar)—May hide some signs and symptoms of these conditions, like a fast heartbeat.

• Kidney disease—Use with caution. The effects may be stronger because it is removed from the body more slowly.

• Lung disease (e.g., asthma, bronchitis, emphysema)—May cause breathing difficulties in patients with this condition.

Along with its necessary effects, a medicine may cause some unwanted effects. Not all of these side effects will occur, but if they do, they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur:

More common

• Blurred vision
• chest pain or discomfort
• confusion
• dizziness, faintness, or lightheadedness when getting up suddenly from a lying or sitting position
• shortness of breath
• slow or irregular heartbeat
• sweating
• unusual tiredness or weakness

Less common

• Anxiety
• cough
• difficulty breathing
• dizziness or lightheadedness
• fainting
• fast heartbeat
• noisy breathing
• sudden shortness of breath or troubled breathing
• tightness in chest
• wheezing

Rare

• Bloody urine
• decreased frequency or amount of urine
• increased blood pressure
• increased thirst
• loss of appetite
• lower back or side pain
• nausea
• swelling of face, fingers, or lower legs
• vomiting
• weight gain

Incidence not determined

• Black, tarry stools
• bleeding gums
• blood in urine or stools
• bone or joint pain
• disturbed color perception
• double vision
• feeling that others are watching you or controlling your behavior
• feeling that others can hear your thoughts
• feeling, seeing, or hearing things that are not there
• fever
• halos around lights
• loss of vision
• night blindness
• overbright appearance of lights
• paleness or cold feeling in fingertips and toes
• pinpoint red or purple spots on skin
• severe mood or mental changes
• skin irritation or rash, including rash that looks like psoriasis
• skin rash, hives, or itching
• sore throat
• swollen or painful glands
• tingling or pain in fingers or toes when exposed to cold
• tunnel vision
• unusual behavior
• unusual bleeding or bruising

Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose

• Anxiety
• coma
• cool, pale skin
• depression
• dilated neck veins
• extreme fatigue
• headache
• increased hunger
• irregular breathing
• nervousness
• nightmares
• seizures
• shakiness
• slurred speech
• unusual drowsiness, dullness, tiredness, weakness, or feeling of sluggishness

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Your health care professional may also be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue, are bothersome, or if you have any questions about them:

Incidence not determined

• Decreased interest in sexual intercourse
• dry mouth
• inability to have or keep an erection
• loss in sexual ability, desire, drive, or performance
• temporary loss of hair
• pain of penis on erection

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

In the U.S.

• Tenormin

Pharmacologic Class: Beta-Adrenergic Blocker, Cardioselective

A nurse or other trained health professional will give you this medicine. This medicine is given through a needle placed in one of your veins.

• What is the best time of day to take blood pressure medication?
• What medications are known to cause hair loss?
• How is atenolol superior to metoprolol?