Lopressor/overdosage: Difference between revisions

Metoprolol
Clinical data
Trade names	Lopressor, Toprol-xl
AHFS/Drugs.com	Monograph
MedlinePlus	a682864
[[Regulation of therapeutic goods \|Template:Engvar data]]	US FDA: Metoprolol;
Pregnancy; category	AU: C ; US: C (Risk not ruled out) ; ;
Routes of; administration	Oral, IV
ATC code	C07AB02 (WHO) ;
Legal status
Legal status	In general: ℞ (Prescription only);
Pharmacokinetic data
Bioavailability	12%
Metabolism	Hepatic via CYP2D6, CYP3A4
Elimination half-life	3-7 hours
Excretion	Renal
Identifiers
	IUPAC name (RS)-1-(Isopropylamino)-3-[4-(2-methoxyethyl)phenoxy]propan-2-ol;
CAS Number	51384-51-1 ;
PubChem CID	4171;
IUPHAR/BPS	553;
DrugBank	DB00264 ;
ChemSpider	4027 ;
UNII	GEB06NHM23;
KEGG	D02358 ;
ChEBI	CHEBI:6904 ;
ChEMBL	ChEMBL13 ;
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
Formula	C15H25NO3
Molar mass	267.364 g/mol
3D model (JSmol)	Interactive image;
Melting point	120 °C (248 °F)
	SMILES O(c1ccc(cc1)CCOC)CC(O)CNC(C)C;
	InChI InChI=1S/C15H25NO3/c1-12(2)16-10-14(17)11-19-15-6-4-13(5-7-15)8-9-18-3/h4-7,12,14,16-17H,8-11H2,1-3H3 ; Key:IUBSYMUCCVWXPE-UHFFFAOYSA-N ;
(verify)

Revision as of 06:07, 13 March 2014

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

Several cases of overdosage have been reported, some leading to death.

Oral LD 50’s (mg/kg): mice, 1158-2460; rats, 3090-4670.

Potential signs and symptoms associated with overdosage with Lopressor are bradycardia, hypotension, bronchospasm, myocardial infarction, cardiac failure and death.

There is no specific antidote.

In general, patients with acute or recent myocardial infarction may be more hemodynamically unstable than other patients and should be treated accordingly (see WARNINGS, Myocardial Infarction).

On the basis of the pharmacologic actions of Lopressor, the following general measures should be employed:

Elimination of the Drug: Gastric lavage should be performed.

Other clinical manifestations of overdose should be managed symptomatically based on modern methods of intensive care.

Hypotension: Administer a vasopressor, e.g., levarterenol or dopamine.

Bronchospasm: Administer a beta2-stimulating agent and/or a theophylline derivative.

Cardiac Failure: Administer digitalis glycoside and diuretic. In shock resulting from inadequate cardiac contractility, consider administration of dobutamine, isoproterenol or glucagon.^[1]

Adapted from the FDA Package Insert.

@@ Line 17: / Line 17: @@
 There is no specific antidote.
-In general, patients with acute or recent [[myocardial infarction]] may be more hemodynamically unstable than other patients and should be treated accordingly ''(see [[Lopressor warnings and precautions#myocaridal Infarction|WARNINGS, Myocardial Infarction]])''.
+In general, patients with acute or recent [[myocardial infarction]] may be more hemodynamically unstable than other patients and should be treated accordingly ''(see [[Lopressor warnings and precautions#Myocaridal Infarction|WARNINGS, Myocardial Infarction]])''.
 On the basis of the pharmacologic actions of Lopressor, the following general measures should be employed: