Isihloko
I-methylene blue yezinga le-USP: lokho okushiwo yileli gama
Ukuthi i-methylene blue isezingeni le-USP kuyisimangalo sokuthi le nto ihambisana namazinga asebenzayo e-United States Pharmacopeia. Lokhu kukodwa akusho ukuthi i-USP ihlole iqoqo, inikeze umthengisi isitifiketi, noma igunyaze umkhiqizo ophelile njengomuthi.
Lo mehluko ubalulekile lapho kuqhathaniswa amabhodlela amalebula awo wonke athi “izinga lekhwalithi lemithi.” Imigomo yokucaciswa ichaza lokho into okufanele ikufeze. Isitifiketi sokuhlaziya sirekhoda imiphumela yeqoqo elithile. Uhlelo lokuqinisekisa luhlola umkhiqizo noma isithako esichaziwe ngaphakathi kobubanzi balo. Isiphathimandla esilawula imithi sigunyaza umkhiqizo othile womuthi. Ngasinye siphendula umbuzo ohlukile ophathelene nokuthenga.
Lokho okubhekiselwa kukho yizinga
I-USP–NF iyiqoqo lamazinga ekhwalithi. Amamonografi ayo achaza izinto ngazinye, kanti Izaziso Nezimfuneko Ezivamile zichaza indlela leli qoqo elihunyushwa futhi elisetshenziswa ngayo. Ngakho isimangalo sokuhambisana namazinga esingasekelwa sidinga imonografi esebenzayo, izimfuneko ezivamile ezifanele, nenguqulo ehlonziwe.
Ngokuqondene nesithako, imonografi efanele ngeye-Methylene Blue. Ungafaki esikhundleni sayo imigomo yokucaciswa komuthi ojovwayo ngaphandle kokukusho, noma ucabange ukuthi ukuhlola isithako kuqinisekisa zonke izici zesixazululo esiphelile. Ukwengeza amanzi, ukugcwalisa amabhodlela, nokugcina ingxube kudala imibuzo mayelana nokugxila, ukungcola, ukuhambisana kwesiqukathi nalokho esikuqukethe, nesikhathi umkhiqizo ongagcinwa ngaso—imibuzo umbiko wesithako ongeke uyiphendule uwodwa.
Incazelo ekumonografi ye-USP etholakala emphakathini icacisa i-methylene blue engu-97.0%–103.0% ngokwesisekelo sento eyomisiwe. Leli yibanga elamukelekayo lokulinganiswa kokuqukethwe, elinesisekelo esicacisiwe sokubala. Akuyona incazelo yokumaketha ethi “ihlanzeke okungenani ngo-99%,” futhi akukhona ukugxila kwesixazululo esisebhodleleni. Iphesenti elingenayo indlela yokulinganisa, inani elihlukanisa elinye lapho kubalwa, nesisekelo sokubala lingumphumela ongaphelele.
Hlola inguqulo esemthethweni, hhayi unyaka kuphela
Uhlu lokuhlola olungezansi lwahlolwa luqhathaniswa nombiko wezibuyekezo we-USP owaba semthethweni ngo-September 1, 2023, otholakala emphakathini. Isiphakamiso se-methylene blue sango-2026 siyikhomba ngokusobala leyo nguqulo njengesisekelo saso. Siphakamisa izinguquko ekulungiseleleni ukulinganiswa kokuqukethwe, ekuzinzeni kwesixazululo, ekubikeni ukungcola, nasekubhekiseni esahlukweni sezinto eziphilayo ezincane. Isiphakamiso asibona ubufakazi bokuthi lezo zinguquko sezibe semthethweni.
Lapho uthenga, funa ukuthi umphakeli ahlonze umbhalo osemthethweni we-USP–NF osebenzayo esitatimendeni sakhe sokuhambisana namazinga. Hlola izinguquko ezisemthethweni ezilandelayo lapho ufaka i-oda elisha. Izaziso ze-USP zamazinga zichaza izinguquko esimweni samazinga; umphumela wokusesha omusha ungaba ukuphawula noma isiphakamiso kunokuba ube imigomo emisha ethatha indawo yaleyo ekhona.
Uhlu lokuhlola izinga nemibhalo
Sebenzisa imikhawulo njengosizo lokuqhathanisa lombiko ohlonziwe, ubeke eceleni kwawo imigomo esemthethweni yamanje yomphakeli. U-NMT usho ukuthi “akudluli.” Ithebula liwukuhlola imibhalo, hhayi isinqumo sokukhulula iqoqo ukuze lisetshenziswe noma lithengiswe.
| Okufanele kuhlolwe | Imfuneko ekumonografi ehlonziwe | Irekhodi okufanele lihlolwe |
|---|---|---|
| Ukuhlonza | Ukuhlolwa nge-infrared; ukugcinwa ku-chromatography; ukuhlonza i-chloride | Imiphumela nezindlela zakho zontathu |
| Ukulinganiswa kokuqukethwe | 97.0%–103.0%, ngokwesisekelo sento eyomisiwe | Inani elilinganisiwe nesisekelo sokubala |
| Ukungcola okuhlobene | Azure B ≤2.5%; ngakunye okungacacisiwe ≤0.10%; ingqikithi ngaphandle kwe-Azure B ≤0.5% | Imiphumela ngayinye, incazelo yengqikithi, umkhawulo wokubika |
| Ukuncipha kwesisindo lapho komiswa | 8.0%–24.0%; 105°C, 5 hours | Umphumela nezimo zokuhlola |
| Insalela ngemva kokushiswa | ≤0.15% | Umphumela nendlela |
| Izibalo zezinto eziphilayo ezincane | Eziphila lapho kunomoya ≤100 CFU/g; imvubelo/isikhunta ≤10 CFU/g | Izibalo nezindlela |
| Ama-endotoxin | Kufanele kuvumele ukuhambisana nezimfuneko ezifanele zohlobo lomuthi | Umkhawulo osebenzayo, ubufakazi, isitatimende sokucutshungulwa |
| Ukupakishwa nokugcinwa | Kuvalwe kahle; kuvikelwe ekukhanyeni; ngaphansi kuka-30°C | Imigomo yokupakishwa nerekhodi lokugcinwa |
Ungathathi isethi yokuhlola izinsimbi ezisindayo njengento ethatha indawo yalokhu kuhlola. Ngakolunye uhlangothi, ukungabikho kwensimbi ethile kuleli thebula akusho ukuthi ayibalulekile. Empendulweni yayo yango-2023 ekuphawuleni nge-methylene blue, i-USP yachaza isinqumo sokusingatha ukungcola okubangelwa izakhi zamakhemikhali ngesu layo elibanzi lokulawula imikhiqizo yemithi, kunokugcina ukuhlolwa ngakunye kule monografi yento esetshenziswa emuthini. Buza ukuthi yiziphi izimfuneko zokungcola okubangelwa izakhi zamakhemikhali ezisebenza kumkhiqizo ohlosiwe nokuthi umphakeli usekela kanjani ukuhambisana nazo. Isethi yokuhlola eyengeziwe yomthengisi nemfuneko yemonografi kufanele kuhlale kuhlonzwa njengezinto ezimbili ezihlukene.
Ukuze uthole irekhodi lokuthenga elisebenzisekayo, landa iphepha lokusebenza lezinga nemibhalo. Linezinkambu zenguqulo, ukuxhumaniswa kweqoqo, ubufakazi obungekho, nobubanzi besimangalo ngasinye.
Lokho okudingeka kushiwo ukuthi “inikezwe isitifiketi yi-USP”
Cela umthengisi asho igama lohlelo. I-USP inikeza izinsizakalo zokuqinisekisa izithasiselo nezithako, kuhlanganise nezithako ezisebenzayo zemithi. Lezi yizinhlelo ezichaziwe; amagama athi “USP” emigomeni yokucaciswa awafakazeli ukubamba iqhaza kuzo.
Ngokwesibonelo, i-USP ichaza uhlelo lwayo lokuqinisekisa izithasiselo zokudla njengokuhambisa ngokuzithandela, okulandelwa ukuhlolwa nokucwaningwa ngokwemibandela yohlelo. Lolo hlelo luwubufakazi ngemikhiqizo engaphakathi kobubanzi balo. Alwenzi zonke izithako noma imikhiqizo yenkampani ebambe iqhaza ibe yizinto eziqinisekisiwe.
Uma umphakeli ethi “i-methylene blue enikezwe isitifiketi yi-USP,” cela igama lohlelo, isithako noma umkhiqizo othile ohlanganisiwe, umkhiqizi, nesiqinisekiso samanje esivela ku-USP. Uma lowo mbhalo esikhundleni salokho uyi-COA yelabhorethri ethi ihambisana nezindlela ze-USP, yichaze ngaleyo ndlela. Ilabhorethri ingahlola ngokwezinga ngaphandle kokuba yinhlangano eshicilela lelo zinga.
Ukugunyazwa komkhiqizo kudinga ukubhekwa ngokwehlukile
Ngesimangalo sokugunyazwa komuthi e-US, sebenzisa irekhodi lesiphathimandla esilawulayo lalowo mkhiqizo ngqo. Umhlahlandlela we-FDA wokuhlola ukuthi umuthi ugunyaziwe yini uqondisa abafundi ku-Drugs@FDA. Qhathanisa umfakisicelo, igama lomkhiqizo, amandla, uhlobo lomuthi, indlela yokunikezwa, nemininingwane yelebula egunyaziwe.
Inombolo ye-NDC ayanele: i-FDA ithi ukunikezwa kwe-NDC akusho ukugunyazwa. Ngokufanayo, ukugunyazwa komuthi ojovwayo akukwazi ukudluliselwa esixazululweni esiphuzwa ngomlomo somunye umthengisi ngenxa yokuthi kokubili kuqukethe i-methylene blue. Kwelinye izwe, hlola irejista yemithi yalelo zwe kanye nokugunyazwa okuqondile okushiwo.
Izinga noma i-COA akufakazeli ukuthi umkhiqizo ulungele ukwelashwa komuntu othile. Ukusetshenziswa ngomjovo ikakhulukazi kudinga umkhiqizo womuthi ophelile ofanele; impushana yezinga lesithako nezixazululo ezivamile ezisemabhodleleni akukwazi ukusetshenziswa esikhundleni sawo. Lo mehluko uyasebenza nalapho kuhlolwa izithasiselo ze-methylene blue, amalebula, nesimo sokulawulwa kwazo.
Xhumanisa imibhalo nebhodlela
Qala ngenombolo yeqoqo esephekheshini. Ikhasi le-Blupreme lekhwalithi nemibhalo yamaqoqo lichaza indlela amarekhodi ayo axhumanisa ngayo iqoqo lomkhiqizo neqoqo lesithako kanye ne-COA yaleso sithako. Sebenzisa lobo budlelwano ukuze uthole umbiko ofanele. Imigomo yokucaciswa ebonisiwe ayiwona ngokwayo umphumela olinganisiwe weqoqo lakho.
Rekhoda ngqo lokho okutholile: isithako esihlanganisiwe, ukuhlolwa okubikiwe, inguqulo yemigomo yokucaciswa, nokuxhumana neqoqo lomkhiqizo ophelile. Uma ukuhlolwa okuthiwa kwenziwe kungekho, cela irekhodi elikusekelayo kunokugcwalisa igebe ngegama elithi “USP.” Sebenzisa uhlu lokuhlola lokuthenga i-methylene blue ukuze uqhathanise imininingwane esele yomkhiqizo ngaphambi kokwenza isinqumo sokuthenga.