Iindaba zeMpilo ye-Aspirin kufuneka zikhumbuze uluntu nge-Vioxx Scandal
Abantu abaninzi baseMelika abangaphezu kwe-45 sele bethatha i-aspirin yemihla ngemihla, i-dose ephantsi yokukhusela iziganeko ze-cardiovascular and stroke. Ngoku uhlalutyo lwe-meta kwiLancet yale veki, i-Bhritane yezonyango ngeveki, ityhila ixabiso eliphantsi lokuthomalalisa iintlungu linokuba linciphisa amathuba abo okuba nomhlaza.
Abantu abathatha i-aspirin yemihla ngemihla ngaphezu kweminyaka emine banciphisa amathuba abo okufa ngumhlaza ngeepesenti ze-21 ngokwedatha epapashwe kule veki. Okukhona bethatha i-aspirin - ukuya kuthi ga kumashumi amabini eminyaka - kokukhona behlisa umngcipheko womhlaza, batsho abaphandi.
Ngelixa isakhono se-aspirin sokunciphisa umngcipheko womhlaza wekholoni wayesaziwa, i-esophageal, isisu, imiphunga, ingqondo, kunye nomhlaza we-pancreatic kubonakala ngathi yehla kwinani lezigulana ezithatha i-aspirin yemihla ngemihla bathi abaphandi.
Izilingo zenziwa ukuhlola imiphumo ye-vascular ye-aspirin yemihla ngemihla kwizigulane kodwa ababhali bafumanisa ukuba umngcipheko we-esophageal kunye nomhlaza womqala wancitshiswa ngama-60 ekhulwini, umhlaza we-colorectal ngamapesenti angama-40, umdlavuza wamaphaphu ngama-30 ekhulwini kunye nomhlaza wesifo seprotate ngepesenti ze-10.
Ngapha koko, ukukwazi kwe-aspirin ukunciphisa iziganeko ze-cardiovascular and stroke kwaye ngoku umhlaza uwenza umgqatswa wogcino lwezempilo lwexesha elide bathi oogqirha ngaphandle kwesisu sayo kunye nemingcipheko yokopha emathunjini. Kunokuba ngcono kunokuhlola okuthile ekunciphiseni umhlaza, batsho abaphandi.
Sele kuyiminyaka emithandathu kuphela oko i-COX-2 inhibitor ethile i-Vioxx yahlawuliswa njenge-aspirin ephezulu eyayingenayo "ingozi" ye-aspirin nguMerck. Ibhengezwe ngokubanzi kwaye iqhutywe yi-Olympians uDorothy Hamill kunye noBruce Jenner, uVioxx wajika kabini umngcipheko wokuhlaselwa yintliziyo kwaye wahoxiswa kwimarike kwi-2004.
Izigulana ezingama-27,785 zahlaselwa sisifo sentliziyo kunye nokufa ngequbuliso kwi-Vioxx, ngokutsho kwe-FDA. UMerck uphinde watyholwa ngokufihla "idatha ebalulekileyo kuluhlu lweziganeko ezimbi zentliziyo," yiNew England Journal of Medicine.
I-Bextra, i-COX-2 inhibitor ethile efana ne-Vioxx, ihoxiswe kwi-2005 ngenxa yezizathu ezifanayo. Enyanisweni izigulane ezithatha i-Bextra emva kokuhlinzwa kwentliziyo zazingamaxesha e-2.19 amathuba okuba ahlaselwe sisifo okanye isifo senhliziyo sathi ulwazi lwe-American Heart Association. Kwaye kunyaka ophelileyo uPfizer wavuma ukuhlawula i-2.3 yeebhiliyoni zeedola ngokuthengisa ngobuqhetseba be-Bextra kunye namanye amachiza amathathu.
Kodwa iCelebrex, eyesithathu i-COX-2 inhibitor, isakhuthazwa ngokubanzi njengesithomalalisi sentlungu kungakhathaliseki ukuba yingozi kangakanani na iklasi yonke yamachiza. Akunjalo neentengiso, ezincoma ukukhululeka kwe-arthritis, zikhankanye ukuba i-21 yezifundo zentlungu ze-Celebrex zangaphambili zixhomekeke kwidatha yobuqhetseba eyenziwe nguDkt. http://en.wikipedia.org/wiki/Celebrex
Isigulana sase-Idaho u-Marilyn H., ingcali ye-X-reyi esele isidla umhlala-phantsi, uxelele intatheli ukuba iziphumo ebezingalindelekanga ezinxulumene negazi ze-Celebrex zenze ukuba ukutshintshwa kwethambo lakhe kufakwe i-necrotic. Kwaye waseKhanada uTimothy Moorley uthi uzwane kunye nomnwe kwafuneka unqunyulwe kwiCelebrex ngaphezu kotyando olukhulu olufunekayo. Ukwiminyaka yakhe engamashumi amathathu kuphela.
Kule veki umshicileli wezonyango uvuthela isalathiso esitsha seCelebrex somhlaza wolusu, nangona "umngcipheko wentliziyo ungawenza ube sisicwangciso sexesha elide," ngokutsho kweHealthDay.
Okwangoku, i-aspirin ephantsi, apho i-COX-2 i-inhibitors ethile yahlawuliswa njengephezulu, inceda endaweni yokulimaza intliziyo - kwangaxeshanye inokunciphisa ingozi yomhlaza.
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