I-Sildenafil - Ukusetyenziswa, Idosi, Iziphumo Ezingalindelekanga kunye nokunye

I-Sildenafil liyeza elisetyenziswa kakhulu ukunyanga ukungasebenzi kakuhle kwe-erectile (ED) kumadoda kunye noxinzelelo lwegazi oluphezulu lwe-pulmonary arterial (PAH) kumadoda nakubafazi. I-Sildenafil (njengeRevatio) ivunyiwe yi-FDA kwi-PAH kubantu abadala nakubantwana abaneminyaka eli-1 nangaphezulu. Ikwiqela lamayeza aziwa ngokuba yi-phosphodiesterase type 5 (PDE5) inhibitors. I-Sildenafil isebenza ngokunyusa ukuhamba kwegazi kwiindawo ezithile zomzimba, okwenza kube lula ukufikelela nokugcina ukuma ngexesha lokwabelana ngesondo. Ekuqaleni yayilungiselelwe ukunyanga iimeko ezinxulumene nentliziyo kodwa ukususela ngoko iye yathandwa ngenxa yokusebenza kwayo ekunyangeni i-ED.

Ukusetyenziswa kweSildenafil

• I-Erectile Dysfunction (ED): Eyona ndlela ixhaphakileyo yokusebenzisa i-sildenafil kukunceda amadoda ane-ED ukuba afikelele kwaye agcine ukuma kwawo xa evuseleleka ngokwesondo.
• Uxinzelelo lwegazi lwemiphunga (PAH): I-Sildenafil ikwasetyenziselwa ukunyanga i-PAH, imeko ebonakaliswa luxinzelelo lwegazi oluphezulu kwimithambo yegazi ehambisa imiphunga. Iphucula amandla okuzilolonga, udidi olusebenzayo lwe-WHO, kwaye iyalibazisa ukwehla kwengxaki yezonyango. Inceda ukuphucula amandla okuzilolonga kwaye inciphise iimpawu ezinxulumene nale meko.

Ingaba isebenza kanjani?

I-Sildenafil isebenza ngokuthintela i-enzyme phosphodiesterase type 5 (PDE5). Ngamafutshane, xa indoda ivukile ngokwesondo, umzimba ukhupha ikhemikhali ebizwa ngokuba yi-nitric oxide, enceda ekuphumzeni imithambo yegazi kwilungu lobudoda. Oku kuphumla kuvumela ukuhamba kwegazi okwandileyo, okukhokelela ekumisweni. I-PDE5 iqhekeza enye ikhemikhali ebizwa ngokuba yi-cyclic guanosine monophosphate (cGMP), enoxanduva lokugcina ukuma. Ngokuvimba i-PDE5, i-sildenafil inceda ukugcina amanqanaba e-cGMP ephezulu, okuvumela ukuhamba kwegazi okuphuculweyo kunye nokuma okuqinileyo.

Isisombululo kunye noLawulo

I-Sildenafil ngokuqhelekileyo ifumaneka kwifom yethebhulethi kwaye ithathwa ngomlomo. Idosi eqhelekileyo yabantu abadala yokungasebenzi kakuhle kwe-erectile yile:

• Idosi yokuqala: I-50 mg ithathwa malunga neyure enye ngaphambi kokuba umntu alale naye.
• Uhlengahlengiso lwethamo: Ngokuxhomekeke ekusebenzeni kakuhle nasekunyamezeleni, idosi inokonyuswa iye kwi-100 mg okanye yehliswe iye kwi-25 mg. Ubuninzi obucetyiswayo yi-1 ngemini.

Kwi-pulmonary arterial hypertension, idosi yokuqala eqhelekileyo yi-20 mg kathathu ngemini (ilingana ne-5 mg tid yokumiswa ngomlomo kubantwana bezingane), kunye nohlengahlengiso oluya kuthi ga kwi-80 mg tid ngokusekelwe kwimpendulo kunye nokunyamezela.

Imiphumo emibi yeSildenafil

Njengazo zonke iziyobisi, i-sildenafil inokubangela iziphumo ebezingalindelekanga.

Iziphumo ebezingalindelekanga eziqhelekileyo ziquka:

• intloko ebuhlungu
• Ukugungxula (ubushushu, ububomvu, okanye ukurhawuzelela)
• Ukunyanzelisa
• Ukudibanisa kwamanzi
• Utywala
• Ukuphazamiseka kokubona (njengokutshintsha kombono wombala, umbono ongaqhelekanga (umbala oluhlaza okwesibhakabhaka))
• Umqolo obuhlungu
• Myalgia

Iziphumo ezibi kakhulu, nangona zinqabile, zinokubandakanya:

• Priapism (ukumiswa kwexesha elide kunye nobuhlungu)
• Ukulahleka kombono ngokukhawuleza
• Ukungeva ngesiquphe
• Iimpawu zokuhlaselwa yintliziyo (intlungu yesifuba, ukuphelelwa umoya)

Ukuba kukho naziphi na iziphumo ebezingalindelekanga ezimandundu, funa unyango ngokukhawuleza.

Ukusebenzisana kweziyobisi

I-Sildenafil inokunxibelelana namayeza amaninzi kunye nezinto, kuquka:

• Nitrates: Isetyenziswa rhoqo kwiintlungu zesifuba, ii-nitrate zinokubangela ukwehla okuyingozi koxinzelelo lwegazi xa zithathwa kunye ne-sildenafil.
• Alpha-blockers: Zisetyenziselwa uxinzelelo lwegazi oluphezulu okanye imiba yeprostate, ezi zinokubangela uxinzelelo lwegazi oluphantsi xa zidityaniswe ne-sildenafil.
• Ezinye izithinteli ze-PDE5: Ukuthatha ii-PDE5 inhibitors ezininzi kunokunyusa umngcipheko weziphumo ebezingalindelekanga.
• Izithinteli ezomeleleyo zeCYP3A4: (umz., i-ketoconazole, i-itraconazole, i-ritonavir): Ezi zinokunyusa amanqanaba e-sildenafil egazini.

Soloko wazisa umboneleli wakho wezempilo malunga nawo onke amayeza kunye nezongezo ozithathayo.

Iinzuzo zeSildenafil

I-Sildenafil inikezela ngeenzuzo ezininzi zeklinikhi kunye nezisebenzayo, kubandakanya:

• Unyango olusebenzayo lwe-ED: Amadoda amaninzi afumana ulwaneliseko olungcono kwisondo.
• Ukuqalisa ngokukhawuleza kwesenzo: I-Sildenafil isebenza kwimizuzu engama-30 ukuya kwengama-60, nto leyo evumela ukuba umntu azenzele isondo ngokuzenzekelayo.
• Umgangatho woBomi obuphuculweyo: Ngokujongana ne-ED, i-sildenafil inokuphucula impilo-ntle yeemvakalelo kunye nolwaneliseko lobudlelwane.
• Unyango lwe-PAH: Inceda ukuphucula amandla okuzilolonga kunye nomgangatho wobomi ngokubanzi kwabo bane-pulmonary arterial hypertension.

Ukuchasana kweSildenafil

Abantu abathile kufuneka bakuphephe ukusebenzisa i-sildenafil, kuquka:

• Akukhuthazwa ngexesha lokukhulelwa (udidi B) okanye ukuncancisa ngenxa yokuba kunokwenzeka ukuba ubisi luphume.
• Abantu abanesifo esibi sesibindi okanye sezintso: Ezi meko zinokuchaphazela indlela umzimba osebenza ngayo amayeza.
• Abo bathatha i-nitrate: Njengoko sele kukhankanyiwe, olu xube lunokubangela uxinzelelo olukhulu lwegazi emzimbeni.
• Abantu abanembali yeengxaki zentliziyo: Ingakumbi abo basandula ukuba nesifo sentliziyo okanye isifo sohlangothi.
• Uvakalelo oluphezulu kwi-sildenafil.
• Izikhuthazi ze-guanylate cyclase ezihambisanayo (umz., i-riociguat).

Izilumkiso kunye nezilumkiso

Ngaphambi kokusebenzisa i-sildenafil, qwalasela le miqathango ilandelayo:

• Thetha noGqirha wakho: Xoxa ngembali yakho yezonyango, ingakumbi ukuba uneengxaki zentliziyo, uxinzelelo lwegazi oluphezulu okanye oluphantsi, iimeko zamehlo (umz., i-retinitis pigmentosa), okanye i-anatomical penile deformation, kunye nomngcipheko we-non-arteritic anterior ischemic optic neuropathy (NAION). Qaphela ukusebenzisana kwejusi yegrapefruit.
• Ukuhlolwa rhoqo: Ukuba uneengxaki zempilo ezifihlakeleyo, ukubekwa esweni rhoqo kunokufuneka.
• Kulumkele Utywala: Utywala obugqithisileyo bunokunyusa umngcipheko weziphumo ebezingalindelekanga kwaye bunciphise ukusebenza kakuhle kwe-sildenafil.

FAQs

• Isetyenziselwa ntoni i-sildenafil? I-Sildenafil isetyenziselwa ukuphatha i-erectile dysfunction kunye ne-pulmonary arterial hypertension.
• I-sildenafil ithatha ixesha elingakanani ukusebenza? I-Sildenafil ngokuqhelekileyo ithatha malunga ne-30 kwimizuzu ye-60 ukuqala ukusebenza.
• Ndingayithatha i-sildenafil kunye nokutya? Ewe, kodwa ukutya okunamafutha amaninzi kunokulibazisa imiphumo yako.
• Ndingayithatha kangaphi i-sildenafil? Awona maza maninzi acetyiswayo kanye ngosuku.
• Ndingenza ntoni xa ndiphosa ithamo? I-Sildenafil ithathwa njengoko ifunekayo, ngoko akukho shedyuli ye-dosing rhoqo elandelayo.
• Ngaba i-sildenafil ikhuselekile kuwo wonke umntu? Hayi, abantu abaneemeko ezithile zempilo okanye abo bathatha amayeza athile kufuneka bakuphephe.
• Ngaba abafazi bangathatha i-sildenafil? I-Sildenafil ayivumelekanga ukusetyenziswa kwabasetyhini, nangona inokumiselwa kwiimeko ezithile ezifana ne-PAH. Ukusetyenziswa kophando olungekho kwileyibhile yokungasebenzi kakuhle ngokwesondo kwabasetyhini akunabungqina buqinileyo.
• Zeziphi iziphumo ebezingalindelekanga eziqhelekileyo? Iziphumo ebezingalindelekanga eziqhelekileyo ziquka intloko ebuhlungu, ukugungxulwa, kunye nokungagayeki.
• Ngaba ndingathatha i-sildenafil kunye namanye amayeza e-ED? Hayi, ukudibanisa i-sildenafil kunye namanye amayeza e-ED kunokunyusa umngcipheko wemiphumo emibi.
• Ndingenza ntoni xa ndifumana iziphumo ebezingalindelekanga ezimandundu? Funa unyango ngokukhawuleza ukuba ufumana iziphumo ebezingalindelekanga ezimandundu ezifana nokubona ngesiquphe okanye ukungeva.

Amagama eBrand

I-Sildenafil ifumaneka phantsi kwamagama amaninzi, kuquka:

• I-Viagra (iipilisi ezingama-25/50/100 mg, zokungasebenzi kakuhle kwe-erectile)
• I-Revatio (iipilisi ezingama-20 mg okanye i-suspension, yoxinzelelo lwegazi oluphezulu lwemithambo yemiphunga)
• Kukho nokufumaneka kwezinto eziqhelekileyo.

isiphelo

I-Sildenafil yonyango esetyenziswa ngokubanzi ephethe ngokufanelekileyo i-erectile dysfunction kunye ne-pulmonary arterial hypertension. Ngokuqonda indlela esebenza ngayo, ukusetyenziswa kwayo, iziphumo ebezingalindelekanga, kunye nezilumkiso, izigulane zinokwenza izigqibo ezinolwazi malunga nokhetho lwazo zonyango. Soloko udibana nomboneleli wezempilo phambi kokuba uqalise naliphi na iyeza elitsha ukuqinisekisa ukuba likhuselekile kwaye lifanelekile kwiimfuno zakho zempilo.