One of the selective α1-receptor blockers is
A: clodinine
B: prazosin
C: phentolamine
D: α-methyldopa
E: tolazoline
A: clodinine
B: prazosin
C: phentolamine
D: α-methyldopa
E: tolazoline
举一反三
- Prazosin A: is a selective reversible a1 receptor antagonist B: Doesnotadverselyaffectblood lipid (cholesterol) levels C: is associated with first-dose hypotension D: is also used for Enlargement of the prostate gland in men
- 能引起体位性低血压的药物是： A: Hydrochlorothiazide B: Prazosin C: Guanethidine D: Methyldopa E: Nifedipine
- Mechanism of action: prazosin ()( ) A: alpha-1 receptor blocker B: beta receptor blocker C: phosphodiesterase inhibitor D: calcium channel blocker
- Which one of the sentence is INCORRECT for Prazosin? A: It is a selective α1 adrenoceptor blocker. B: It blocks presynaptic α2 adrenoceptors to increase release of noradrenaline. C: It has first dose of effect, showing postural hypotension. D: It dilates resistance and capacitance vessels. E: It can decrease the blood cholesterol concentrations.
- Both phentolamine and prazosin A: are competitive antagonist at α1 adrenergic receptors B: have potent direct vasoconstrictor actions on vascular smooth muscle C: enhance gastric acid secretion through a histamine -like effect D: cause hypotension and bradycardia E: are used chronically for the treatment of primary hypertension