威而鋼成分如何幫助男性擺脫陽痿困擾？醫學專家來解答

威而鋼(Viagra)是一款口服藥物,由美國輝瑞(Pfizer)公司開發,於2000年7月在臺灣上市,專為治療陽痿(勃起功能障礙)患者而設計。該藥物的問世為許多陽痿患者帶來了希望和解脫。現在,讓我們來瞭解一下威而鋼成分及其作用機制。


威而鋼的主要成分是枸櫞酸西地那非(Sildenafil Citrate)。它是一種對環磷酸鳥苷(cGMP)特異的5型磷酸二酯酶(PDE5)選擇性抑制劑。這意味著威而鋼能夠阻止PDE5酶的活性,從而增加陰莖海綿體內cGMP的水準。cGMP是一種在陰莖組織中起著關鍵作用的物質,它可以促使平滑肌鬆弛,增加血流量,進而實現勃起。





威而鋼的作用機制與陰莖勃起的生理過程密切相關。在性刺激過程中,陰莖海綿體釋放一氧化氮(NO),這啟動了鳥苷酸環化酶,進而導致cGMP水準的增加。威而鋼作用就是通過抑制PDE5酶,阻止其降解cGMP,從而使cGMP能夠在陰莖組織中更長時間地發揮作用。這種作用機制有助於增加陰莖海綿體的充血,使勃起更加堅硬持久。


需要注意的是,威而鋼並不能單獨引起性欲。它的作用僅在於在出現性衝動時幫助恢復陽痿患者的正常勃起能力。換句話說,威而鋼的主要作用是幫助恢復正常的性功能,使得在性刺激存在時能夠自然勃起。這也是威而鋼最大的優勢,能夠讓人恢復自然的性功能,享受自然而愉悅的性愛。

威而鋼的禁忌症有哪些？


此外,威而鋼效果也可以顯著延時。許多研究表明,使用威而鋼後,性行為的持續時間通常能夠延長。這使得許多人將威而鋼視為一種壯陽藥物。然而,我們應該謹記,威而鋼的主要治療目標是陽痿,而不是性持久力。


在使用威而鋼時,患者應該謹慎遵循醫生的指示。特別是對於正在使用任何形式的硝酸酯類藥物(如硝酸甘油)的患者,無論是規律使用還是間斷使用,都應該避免同時使用威而鋼,因為這可能導致血壓下降的風險。此外,對威而鋼中的任何成分過敏的患者也應禁止使用該藥物。在使用過程中,如果發生藥物過量,應根據需要進行常規的支持療法。

解析男性勃起障礙：症狀、原因和可行的治療方案


威而鋼購買鏈接:https://viagraintw.com/product/viagra


必利吉購買鏈接:https://viagraintw.com/product/extra-super-p-force


威而鋼學名藥購買鏈接:https://viagraintw.com/product/cenforce-100


總結來說,威而鋼是一種有效治療陽痿的口服藥物,其主要成分是枸櫞酸西地那非。它通過抑制PDE5酶,促進NO的釋放,增加cGMP水準,從而促使陰莖海綿體充血,恢復正常的勃起功能。然而,患者在使用威而鋼時應謹慎遵循醫生的建議,避免與硝酸酯類藥物同時使用。如果您有陽痿問題,建議您諮詢醫生以獲得適當的治療方案。


更多文章推薦:


威而鋼假藥相關文章:威而鋼假藥的類型、危害和案例 | 以及防騙局指南


威而鋼飲酒相關文章:飲酒前後服用威而鋼有哪些風險?醫:會產生交互作用


威而鋼無效相關文章:導致威而鋼無效、效果不佳的原因 以及應對方法


原文連結：威而鋼成分如何幫助男性擺脫陽痿困擾？醫學專家來解答

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