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Nadolol

Beta Blocker · Antiarrhythmic

Beta BlockerAntiarrhythmicATC C07AA06
CDSCO approvedSchedule HATC C07AA06
EXCRETION
not curated
INTERACTIONS
12 major
SEVERE in our sources
PREGNANCY
Crosses the placenta but not known to be
FDA category + note
Top interactionssee all 12
  • AdrenalineSevereTextbookKDT 7e · p133
  • AmilorideSevereTextbookKDT 7e
  • SofosbuvirSevereTextbookHarrison 22e · unknown
  • AminophyllineSevereDatabaseDDInter

Mechanism

Nadolol is a non-selective beta-adrenergic receptor antagonist, blocking both "1 and "2 receptors. Beta-1 receptor blockade in the heart reduces heart rate and contractility. Beta-2 receptor blockade affects bronchial smooth muscle.

Indications

Arrhythmiashypertensionangina pectorismigraine prophylaxis (unlabeled)parkinsonian tremors (unlabeled)variceal bleeding in portal hypertension (unlabeled)performance anxietysituational anxietyArrhythmias in congenital long QT syndromeArrhythmias in catecholaminergic polymorphic ventricular tachycardia (CPVT)AnginaPrevention of arrhythmiasRate control in atrial fibrillationMigraine

Dosing

Adult
l INDICATIONS AND DOSE Cardiopulmonary resuscitation (as an alternative if amiodarone is not available) ▶ BY INTRAVENOUS INJECTION Adult: 1 mg/kg, do not exceed 3 mg/kg over the first hour Ventricular arrhythmias, especially after myocardial infarction in patients without gross circulatory impairment ▶ ▶ INITIALLY BY INTRAVENOUS INJECTION Adult: 100 mg, to be given as a bolus dose over a few minute…
Renal adjustment
dosage should be reduced in patients with renal failure

Pharmacokinetics

Half-life
about 20 h
Bioavailability
about 35% (oral), incompletely absorbed
Protein binding
lower concentrations in brain due to low lipid solubility
Metabolism
not extensively metabolized
Excretion
largely excreted intact in urine

Contraindications

  • abrupt discontinuation (withdrawal syndrome)
  • Asthma
  • Peripheral vascular disease
  • Hypoglycemia
  • AV block (grade 2-3)

Side effects

Common
hypotensionBradycardiaBronchospasmPeripheral vasoconstrictionWorsening of acute heart failureDepressionWorsening of psoriasisIncreased triglyceridesDecreased HDL cholesterol
Serious
  • Withdrawal syndrome (rebound hypertension, exacerbation of CAD symptoms)
  • Severe hypertension and bradycardia (if used with epinephrine)

Pregnancy & lactation

Pregnancy

Crosses the placenta but not known to be

Drug interactions

Adrenaline
Severe
Textbook

Marked rise in BP.

Adrenaline should not be given to patients receiving β blockers.

Source: KDT 7e · p133

Amiloride
Severe
Textbook

Hyperkalaemia more likely.

Source: KDT 7e

Sofosbuvir
Severe
Textbook

Severe bradycardia.

Extreme caution advised if amiodarone is co-administered with sofosbuvir and a beta blocker.

Source: Harrison 22e · unknown

Aminophylline
Severe
Database

Drug interaction classified as: antagonism

Source: DDInter

Arformoterol
Severe
Database

Drug interaction classified as: antagonism

Source: DDInter

Atazanavir
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Ceritinib
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Clonidine
Severe
Database

Drug interaction classified as: synergy

Source: DDInter

Diltiazem
Severe
Database

Increased propensity for AV block, severe bradycardia, and decreased left ventricular function.

Avoid concurrent administration. The concurrent administration of diltiazem with a beta blocker is contraindicated.

Source: DDInter

Disopyramide
Severe
Database

Clinical effect not specified

Source: DDInter

Dolasetron
Severe
Database

Clinical effect not specified

Source: DDInter

Dyphylline
Severe
Database

Clinical effect not specified

Source: DDInter

Related guidelines

Other Beta Blocker drugs

Ask House about Nadolol

Continue into a citation-backed clinical answer with the drug context already attached.

Sources: Goodman & Gilman 14e, BNF·Verified: 2026-05-13 · House clinical team