Sotalol detailed information

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Sotalol detailed information
Clinical data
Pregnancy
category
  • US: B (No risk in non-human studies)
Routes of
administration
oral
ATC code
Legal status
Legal status
  • In general: ℞ (Prescription only)
Pharmacokinetic data
Bioavailability>95%
MetabolismNot metabolised
Elimination half-life12 hours
ExcretionRenal
Lactic (In lactating females)
Identifiers
CAS Number
PubChem CID
E number{{#property:P628}}
ECHA InfoCard{{#property:P2566}}Lua error in Module:EditAtWikidata at line 36: attempt to index field 'wikibase' (a nil value).
Chemical and physical data
FormulaC12H20N2O3S
Molar mass272.3624 g/mol

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


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Sotalol (trade names Betapace and Betapace AF, Berlex Laboratories) is a drug used in individuals with rhythm disturbances (cardiac arrhythmias) of the heart, and to treat hypertension in some individuals.

Pharmacology

It falls into the class III antiarrhythmic agents because it inhibits the inward potassium ion channels in the heart. It is also a beta blocker because of its primary action on the β-adrenergic receptors in the heart.

By blocking the potassium channels, sotalol prolongs repolarization, therefore lengthening the QT interval and decreasing automaticity.

It also slows atrioventricular (AV) nodal conduction (beta-blocking effect).

Sotalol is a racemic mix of D and L enantiomers. The L isomer is a beta blocker.

Sotalol is not selected for its beta-blocking ability, but rather for its Class III (potassium blocking) properties.

Indications

Sotalol is used to treat ventricular tachycardias as well as atrial fibrillation. Betapace AF is specifically labeled for atrial fibrillation.

Some evidence suggests that sotalol should be avoided in the setting of decreased ejection fraction due to heart attack.[1]

Footnotes

  1. Waldo A, Camm A, deRuyter H, Friedman P, MacNeil D, Pauls J, Pitt B, Pratt C, Schwartz P, Veltri E (1996). "Effect of d-sotalol on mortality in patients with left ventricular dysfunction after recent and remote myocardial infarction. The SWORD Investigators. Survival With Oral d-Sotalol". Lancet. 348 (9019): 7–12. PMID 8691967.

See also


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