Nhận Dạng Quốc Tế & Đặc Tính Hóa Học
Công thức hóa học
C14H22N2O3
Monoisotopic mass
266.16304258
InChI
InChI=1S/C14H22N2O3/c1-10(2)15-8-13(18)9-19-14-6-4-12(5-7-14)16-11(3)17/h4-7,10,13,15,18H,8-9H2,1-3H3,(H,16,17)
InChI Key
InChIKey=DURULFYMVIFBIR-UHFFFAOYSA-N
IUPAC Name
N-(4-{2-hydroxy-3-[(propan-2-yl)amino]propoxy}phenyl)acetamide
Traditional IUPAC Name
practolol
SMILES
CC(C)NCC(O)COC1=CC=C(NC(C)=O)C=C1
pKa (strongest acidic)
14.03
pKa (Strongest Basic)
9.67
Refractivity
75.24 m3·mol-1
Dược Lực Học :
Practolol is a beta-adrenergic receptor antagonist that has been used in the emergency treatment of cardiac arrhythmias. Beta blockers inhibit normal epinephrine-mediated sympathetic actions, but have minimal effect on resting subjects. That is, they reduce the effect of excitement/physical exertion on heart rate and force of contraction and dilation of blood vessels.
Cơ Chế Tác Dụng :
A beta-adrenergic antagonist that has been used in the emergency treatment of cardiac arrhythmias. [PubChem]
Like other beta-adrenergic antagonists, practolol competes with adrenergic neurotransmitters such as catecholamines for binding at sympathetic receptor sites. Like propranolol and timolol, practolol binds at beta(1)-adrenergic receptors in the heart and vascular smooth muscle, inhibiting the effects of the catecholamines epinephrine and norepinephrine and decreasing heart rate, cardiac output, and systolic and diastolic blood pressure.
Độc Tính :
Symptoms of overdose include abdominal irritation, central nervous system depression, coma, extremely slow heartbeat, heart failure, lethargy, low blood pressure, and wheezing.
Chỉ Định :
Used in the emergency treatment of cardiac arrhythmias.
Tương Tác Thuốc :
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Acetohexamide
The beta-blocker, practolol, may decrease symptoms of hypoglycemia.
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Chlorpropamide
The beta-blocker, practolol, may decrease symptoms of hypoglycemia.
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Clonidine
Increased hypertension when clonidine stopped
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Dihydroergotamine
Ischemia with risk of gangrene
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Disopyramide
The beta-blocker, practolol, may increase the toxicity of disopyramide.
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Epinephrine
Hypertension, then bradycardia
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Ergotamine
Ischemia with risk of gangrene
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Fenoterol
Antagonism
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Formoterol
Antagonism
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Gliclazide
The beta-blocker, practolol, may decrease symptoms of hypoglycemia.
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Glyburide
The beta-blocker, practolol, may decrease symptoms of hypoglycemia.
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Ibuprofen
Risk of inhibition of renal prostaglandins
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Indomethacin
Risk of inhibition of renal prostaglandins
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Insulin Glargine
The beta-blocker, practolol, may decrease symptoms of hypoglycemia.
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Methysergide
Ischemia with risk of gangrene
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Orciprenaline
Antagonism
-
Oxprenolol
Antagonism
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Pipobroman
Antagonism
-
Piroxicam
Risk of inhibition of renal prostaglandins
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Prazosin
Risk of hypotension at the beginning of therapy
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Repaglinide
The beta-blocker, practolol, may decrease symptoms of hypoglycemia.
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Terbutaline
Antagonism