I-Adrainolitics yiqela leekhemikhali ezichaphazela abantu abathile be-adrenergic receptors. Ngokuxhomekeke ekubeni zeziphi i-adrenoreceptors ezichaphazelekayo zezi zinto, zihlukaniswe kwi-beta kunye ne-alpha-blockers. Amalungiselelo asekelwe kuwo anqunywe ekulweni nama-pathologies ahlukahlukeneyo entliziyweni, inkqubo ye-vascular, xa kwenzeka ukuphazamiseka kwimijikelezo kunye nokulungelelanisa ingcinezelo.
Ukulungiselela ii-Alpha-blockers
Kukho amaqela amabini aphezulu amayeza.
Iibhloko ezikhethiweyo
Iimpawu ziphazamise umsebenzi we-postsynaptic adenoreceptors, okubangela ukwandiswa kwe-lumen yeempahla kunye nokunciphisa uxinzelelo, kunye nokukhululwa okugqithisileyo kwe-norepinephrine.
Ummeli oyintloko weqela lokuqala ngu-Fentolamine, ochaphazelayo ukwandisa iinqanawa zomhlaba. Xa i-substance ilawulwa nge-intravenously, isiphumo siphumelelwa kwimaminithi elishumi elinesihlanu.
Kwimichiza, iyeza ngoku lisetyenziswe ngokungaqhelekanga, kodwa linokumiselwa:
- ukulala okanye ubanda;
- ukuxilongwa kwepheochromocytoma;
- ntlekele;
- tshutshiswa;
- Isifo sikaRaynaud .
Abanye abameli beli qela:
- Pyrroxane;
- Tropafen;
- Dihydroergotamine.
I-Alpha-1-adrenoblockers ekhethiweyo
Ezi zinto zibonakaliswe ngumsebenzi omkhulu kunye nobude. Zinefuthe elihle kwinqanaba le-cholesterol egazini, ngaloo ndlela ukunciphisa umngcipheko wokuphucula i-atherosclerosis. Ukongeza, izinto azichaphazeli umxholo weshukela, musa ukwandisa uxinzelelo kwaye zihluke kwinani elincinane lemiphumo emibi.
I-alpha-blockers ekhethiweyo ibandakanya uluhlu olulandelayo lweziyobisi:
- Doxazosin;
- Ter;
- Prazon.
Ngokusebenza kwazo, ezi zi yobisi zide phambili kwiFentolamine. Igalelo labo eliphambili kukunciphisa uxinzelelo ngokunciphisa ukuxothwa kwethambo le-vascular. Iipropati ziqala ukubonakalisa emva kweyure emva kokungena.
Imiqondiso yokusetyenziswa kwe-Alpha-adrenoblockers
Cinga ngeempembelelo zokwelapha zamaqela athile eziyobisi:
- Ngomzimba we-circulatory system (isifo sikaRaynaud), kwipilisi yezilonda zokuphilisa ixesha elide kunye ne-decubitus, kunye nokulawulwa kwepheochromocytomas, iFentolamine neTropafen imiselwe.
- Amanqanaba okuqala okuphuhliswa kwe-prostate adenoma iphathwa ngeprozazin, ephucula ukuphuma komchamo.
- I-Alfa-1-adrenoblockers yayivame kakhulu kwixinzelelo. Bandisa iinqwelo (ukusuka kumncinci kuncinci ukuya kunkulu), ngokunciphisa uxinzelelo. Ukunciphisa uxinzelelo kubangela ukulahla okukhulu kumthwalo kwi-myocardium, eyenza ukuba ezi ziyobisi ziphumelele kwi- infyoction ye-myocardial .
- Ukusetyenziswa kwexesha elide, iPrazonin neDoxazine zisetyenziswe.
- Izakhiwo zeFostopolitic zinikezwa nguFentolamin noPrazonin.
- I-Diabergergotamine isetyenziselwa i-migraine, kunye neendlela ezinzima kunye neenkomfa zokungasebenzi.
Ukungqinelana kwee-alpha-blockers
Musa ukunika amayeza kubantu abaneziphene ezilandelayo:
- bradycardia;
- i-atherosclerosis;
- ntliziyo;
- nesifo sesifo;
- ukuxhomekeka kwendlela yokuphendula ngayo, uhlobo lwabantu asebekhulile abanesifo sikashukela;
- isifo se-ischemic ngaphandle kokulawulwa ngokufanayo kwe-beta-blockers;
- ukukhubazeka kokujikelezwa kwesiberebhu.
Ukuchasana ngokukodwa kukukhulelwa.
Imiphumo engathandekiyo ibonakaliswa njenge:
- uxinzelelo olunzulu;
- ukuqala kokuvuvukala;
- intloko;
- ukungabi nantoni kwenhliziyo;
- tachycardia;
- vasodilation;
- ukuvuvukala kweembrane ezinobumba;
- isicefe
- kulala;
- intlungu kwiimisipha.