Price and Availability of Labetalone hydrochloride:
Size
Price
Stock
10mg
USD
In Stock
25mg
USD
In Stock
50mg
USD
In Stock
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Biological Activity:
Labetalone hydrochloride combines both selective, competitive, alpha-1-adrenergic blocking and nonselective, competitive, beta-adrenergic blocking activity in a single substance. In man, the ratios of alpha- to beta- blockade have been estimated to be approximately 1:3 and 1:7 following oral and intravenous (IV) administration, respectively. The principal physiologic action of labetalol is to competitively block adrenergic stimulation of β-receptors within the myocardium (β1-receptors) and within bronchial and vascular smooth muscle (β2-receptors), and α1-receptors within vascular smooth muscle. This causes a decrease in systemic arterial blood pressure and systemic vascular resistance without a substantial reduction in resting heart rate, cardiac output, or stroke volume, apparently because of its combined α- and β-adrenergic blocking activity.
References:
1. Katzung, Bertram G. (2006).Basic and clinical pharmacology. New York: McGraw-Hill Medical. p. 170.ISBN0-07-145153-6.
2. Shiohara T, Kano Y (2007). "Lichen planus and lichenoid dermatoses". In Bolognia JL.Dermatology. St. Louis: Mosby. p. 161.ISBN1-4160-2999-0.