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Brand Name :
Tenormin
(United States) [Available]Synonyms :
atenolol
Class :
Anti-hypertensives and Beta-Blockers
Brand Name :
Tenormin
(United States) [Available]Synonyms :
atenolol
Class :
Anti-hypertensives and Beta-Blockers
Dosage Forms & Strengths
Tablet
25mg
50mg
100mg
50
mg
Orally
once a day
; after 1 week; can be increased up to 100 mg or 200 mg
100
mg
Orally
once a day
off-label:
50 - 100
mg
Orally
once a day
off-label:
50
mg
Orally
once a day
; initially up to 3 days before surgery and continued until 7 days after surgery; and increased up to 100 mg
25 - 100
mg
Orally
once a day
25 - 50
mg
Orally 
once a day
; can be increased up to 100 mg
Dosage Forms & StrengthsÂ
Tablet
25mg
50mg
100mg
0.5 - 1
mg/kg
Orally
once a day
; do not exceed 2 mg/kg per day
may increase the hypotensive effect of anti-hypertensive agents
may increase the hypotensive effect of anti-hypertensive agents
may enhance the antihypertensive effect of other alpha1-Blockers
bunazosin (Not available in the United States)
may enhance the antihypertensive effect of other alpha1-Blockers
may enhance the antihypertensive effect of other alpha1-Blockers
may enhance the antihypertensive effect of other alpha1-Blockers
may enhance the antihypertensive effect of other alpha1-Blockers
it may enhance the effects when combined with lofexidine by pharmacodynamic synergism
may decrease the antihypertensive effect when both drugs are combined
it decreases the effect of hypotension on blood-lowering agents
may increase the hypotensive effect of anti-hypertensive agents
may enhance the hypotensive effect of blood Pressure Lowering Agents
may enhance the hypotensive effect of blood Pressure Lowering Agents
may enhance the hypotensive effect of blood Pressure Lowering Agents
may enhance the hypotensive effect of blood Pressure Lowering Agents
may enhance the hypotensive effect of blood Pressure Lowering Agents
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypotensive effect
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the effect of antipsychotic agents
may enhance the hypotensive effect of antipsychotic agents
may enhance the hypotensive effect of antipsychotic agents
may enhance the hypotensive effect of antipsychotic agents
may enhance the hypotensive effect of antipsychotic agents
may enhance the hypotensive effect of antipsychotic agents
may enhance the hypotensive effect of antipsychotic agents
When domeperidone and atenolol is used together, this leads to reduction in the domeperidone’s metabolism
It may enhance the risk of adverse effects when combined with antianginal drugs
It may enhance the risk of adverse effects when combined with antianginal drugs
It may enhance the risk of adverse effects when combined with antianginal drugs
It may enhance the risk of adverse effects when combined with antianginal drugs
It may enhance the risk of adverse effects when combined with antianginal drugs
When ponesimod is used together with atenolol, this leads to enhanced risk or seriousness of bradycardia
When indisulam is used together with atenolol, this leads to a reduction in atenolol metabolism
atenolol: it may increase the arrhythmogenic activities of caroverine
atenolol: it may decrease the metabolism of dextropropoxyphene
atenolol may heighten the arrhythmogenic activities of digitoxin
When bacampicillin combines with atenolol, the effect and action of atenolol decreases.
The interaction may enhance the hypotensive effects of opioid anti-tussive agents
The interaction may enhance the hypotensive effects of opioid anti-tussive agents
The interaction may enhance the hypotensive effects of opioid anti-tussive agents
it may reduce the effect of antihypertensive agents
Amphetamines may reduce the antihypertensive effect of antihypertensive Agents.
Amphetamines may reduce the antihypertensive effect of antihypertensive Agents.
Amphetamines may reduce the antihypertensive effect of antihypertensive Agents.
Loop Diuretics may increase the hypotensive effect of antihypertensive Agents
Loop Diuretics may increase the hypotensive effect of antihypertensive Agents
Loop Diuretics may increase the hypotensive effect of antihypertensive Agents
alfuzosin may enhance the hypotensive effect of Blood Pressure Lowering Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
antihypertensive drugs may enhance the hypotensive effect of antipsychotic Agents
NSAIDs May diminish the anti-hypertensive effect of Beta-Blockers
NSAIDs May diminish the anti-hypertensive effect of Beta-Blockers
NSAIDs May diminish the anti-hypertensive effect of Beta-Blockers
NSAIDs May diminish the anti-hypertensive effect of Beta-Blockers
NSAIDs May diminish the anti-hypertensive effect of Beta-Blockers
may enhance the hypotensive effect of Blood Pressure Lowering Agents
may enhance the hypotensive effect of Blood Pressure Lowering Agents
may enhance the hypotensive effect of Blood Pressure Lowering Agents
may enhance the hypotensive effect of Blood Pressure Lowering Agents
may enhance the hypotensive effect of Blood Pressure Lowering Agents
may enhance the hypotensive effect of Blood Pressure Lowering Agents
Barbiturates may enhance the hypotensive effect of Blood Pressure Lowering Agents
Barbiturates may enhance the hypotensive effect of Blood Pressure Lowering Agents
Barbiturates may enhance the hypotensive effect of Blood Pressure Lowering Agents
Barbiturates may enhance the hypotensive effect of Blood Pressure Lowering Agents
Barbiturates may enhance the hypotensive effect of Blood Pressure Lowering Agents
antihypertensive agents increase the efficacy of antipsychotic agents
it decreases the efficacy of antihypertensive agents
antihypertensive agents include the efficacy of duloxetine
it increases the efficacy of antihypertensive agents
it decreases the efficacy of antihypertensive agents
antihypertensive agents increase the efficacy of nitroprusside
it enhances the serum potassium levels
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypotensive effect
may increase the hypertensive effect
may increase the hypotensive effect
may increase the hypoglycaemic effect
may enhance the hypotensive effect of antihypertensive agents
may enhance the hypotensive effect of antihypertensive agents
may enhance the hypotensive effect of antihypertensive agents
may reduce the effect of antihypertensive drugs
may reduce the effect of antihypertensive drugs
may reduce the effect of antihypertensive drugs
may reduce the effect of antihypertensive drugs
may reduce the effect of antihypertensive drugs
may enhance the hypotensive effect
may enhance the hypotensive effect
may enhance the hypotensive effect
may enhance the hypotensive effect
may enhance the hypotensive effect
may increase the hypotensive effect of anti-hypertensive agents
may decrease the hypertensive effect of amphetamines
may decrease the therapeutic efficacy when combined
arrhythmogenic effects of agmatine may be enhanced with atenolol
the serum levels of potassium may be increased
the bradycardic activity of atenolol may be increased
When atenolol is used together with oliceridine, this leads to reduction in oliceridine’s metabolism
the antihypertensive activity of atenolol may be reduced
Adverse drug reactions:
Frequency Defined
>10%
Fatigue
1-10%
Bradycardia
Lightheadedness
Hypotension
Cold extremities
Postural hypotension
Depression
Nausea
Leg pain
Lethargy
Vertigo
Dyspnea
Dreaming
Drowsiness
Diarrhea
Fatigue
Frequency Not Defined
severe congestive heart failure (CHF)
Hypotension
sick sinus syndrome
hallucinations
Catatonia
disorientation
emotional lability
Purpura
Nausea
Thrombocytopenia
Pregnancy warnings:Â Â
US FDA pregnancy category: D
AU TGA pregnancy category: C
Breastfeeding warnings:
The release of the drug into the human breastmilk is known
Pregnancy Categories:Â Â Â
Category A:Â Satisfactory and well-controlled studies show no risk to the fetus in the first or later trimester.
Category B:Â No evidence shown of risk to the fetus found in animal reproduction studies, and there are not enough studies on pregnant women
Category C:Â Adverse effects on the fetus found with evidence in animal reproduction studies and no adequate evidence for a result in humans must take care of potential risks in pregnant women
Category D:Â There is adequate data available with sufficient evidence of human fetal risk from various platforms, but despite the potential risk, and used only in emergency cases for potential benefits
Category X:Â Drugs listed in this category outweigh risks over benefits. Hence these categories of drugs need to be avoided by pregnant women.
Category N:Â There is no data available for the drug under this category
Patient information leaflet  Â
Generic Name: atenololÂ
Pronounced: a-TEN-oh-loleÂ
Why do we use atenolol? Â
Atenolol is a cardioselective beta-1 adrenergic blocker commonly used to manage various cardiovascular conditions. It is primarily prescribed for hypertension, where it helps lower blood pressure and reduce the risk of cardiovascular complications. Atenolol is also used in the treatment of angina pectoris, as it decreases myocardial oxygen demand, thereby reducing chest pain and improving exercise tolerance. In the setting of an acute myocardial infarction, atenolol helps limit infarct size, prevent complications, and reduce mortality. It is also used to manage certain arrhythmias, particularly to control heart rate in conditions like atrial fibrillation or supraventricular tachycardia. Â
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