Inqaku
I-methylene blue ekumgangatho we-USP: oko kumiselwa lolu phawu
Ukuthi i-methylene blue ikumgangatho we-USP libango lokuba loo nto iyahambelana nemigangatho esebenzayo ye-United States Pharmacopeia. Oko, ngokwako, akuthethi ukuba i-USP ivavanye ibhetshi, iqinisekise umthengisi, okanye igunyazise imveliso egqityiweyo njengeyeza.
Lo mahluko ubalulekile xa kuthelekiswa iibhotile ezineelebhile ezithi zonke “zikumgangatho wamayeza.” Inkcazelo yeemfuno ichaza oko into kufuneka ikufezekise. Isatifikethi sohlalutyo sibhala iziphumo zebhetshi ethile. Inkqubo yokuqinisekisa ivavanya imveliso okanye isithako esichaziweyo ngaphakathi kwemida yayo. Umlawuli wamayeza ugunyazisa imveliso ethile yamayeza. Nganye iphendula umbuzo owahlukileyo wokuthenga.
Oko kubhekiswa kuko ngumgangatho
I-USP–NF yingqokelela yemigangatho yobulunga. Iimonografi zayo zichaza izinto ezithile, ngoxa iZaziso neeMfuno eziBanzi zichaza indlela le ngqokelela etolikwa nesetyenziswa ngayo. Ngoko ibango lokuhambelana nemigangatho elinokuxhaswa lifuna imonografi esebenzayo, iimfuno ezibanzi ezifanelekileyo, kunye nenguqulelo echongiweyo.
Kwisithako, imonografi efanelekileyo yile ithi Methylene Blue. Musa ukusebenzisa inkcazelo yeemfuno yento etofwayo endaweni yayo ngaphandle kokukuchaza oko, okanye ucinge ukuba ukuvavanya isithako kuqinisekisa zonke iimpawu zesisombululo esigqityiweyo. Ukongeza amanzi, ukuzalisa iibhotile, nokugcina umxube kuzisa imibuzo malunga noxinaniso, ungcoliseko, ukuhambelana nesikhongozeli, nexesha lokugcinwa enokusetyenziswa ngalo, engenakuphendulwa yingxelo yesithako yodwa.
Inkcazelo ekwimonografi ye-USP efumaneka kuluntu ichaza i-methylene blue eyi-97.0%–103.0% ngokwesiseko esomisiweyo. Olo luluhlu olwamkelekileyo lovavanyo lwesiqulatho olunesiseko esichaziweyo sokubala. Asiyonkcazelo yokuthengisa ethi “icoceke ubuncinane nge-99%,” yaye ayiloxinaniso lwesisombululo esisebhotileni. Ipesenti engenandlela yovavanyo, inani ekwahlulwa ngalo, nesiseko sayo sisiphumo esingaphelelanga.
Hlola inguqulelo esemthethweni, hayi unyaka kuphela
Uluhlu lokuhlola olungezantsi luthelekiswe nebhulethini yohlaziyo ye-USP efumaneka kuluntu neyaqala ukusebenza ngokusemthethweni ngoSeptemba 1, 2023. Isindululo se-methylene blue sika-2026 sichonga ngokucacileyo loo nguqulelo njengesiqalo saso. Sicebisa utshintsho ekulungiseleleni uvavanyo lwesiqulatho, ekuzinzeni kwesisombululo, ekuxelweni kokungcola, nakwisalathiso sesahluko sezinto eziphilayo ezincinane. Isindululo asibobungqina bokuba olo tshintsho sele lusebenza ngokusemthethweni.
Xa kuthengwa, funa ukuba umboneleli achonge umbhalo osemthethweni we-USP–NF osebenzayo kwingxelo yakhe yokuhambelana nemigangatho. Hlola utshintsho olusemthethweni olwalandelayo xa ufaka iodolo entsha. Izaziso ze-USP eziphathelele ingqokelela yemigangatho zichaza utshintsho kwisimo semigangatho; isiphumo esitsha sokukhangela sisenokuba yingcaciso okanye isindululo, kunokuba sibe yinkcazelo yeemfuno ethatha indawo yangaphambili.
Uluhlu lokuhlola umgangatho namaxwebhu
Sebenzisa imida njengoncedo lokuthelekisa ibhulethini echongiweyo, kunye nenkcazelo yeemfuno esemthethweni yangoku yomboneleli ecaleni kwayo. I-NMT ithetha “ingadluli.” Le theyibhile yeyokuhlola amaxwebhu, hayi ukwenza isigqibo sokukhulula ibhetshi ukuze isetyenziswe okanye ithengiswe.
| Into ehlolwayo | Imfuneko kwimonografi echongiweyo | Uxwebhu oluza kuhlolwa |
|---|---|---|
| Ukuchongwa | Imitha ye-infrared; ixesha lokugcinwa kwikhromatografi; ukuchongwa kwekhlorayidi | Iziphumo neendlela zovavanyo zazo zontathu |
| Uvavanyo lwesiqulatho | 97.0%–103.0%, isiseko esomisiweyo | Ixabiso elilinganisiweyo nesiseko sokubala |
| Ukungcola okunxulumeneyo | Azure B ≤2.5%; ukungcola ngakunye okungachazwanga ≤0.10%; iyonke ngaphandle kwe-Azure B ≤0.5% | Iziphumo zento nganye, inkcazelo yetotali, umda wokuqalisa ukuxela |
| Ilahleko ngokomiswa | 8.0%–24.0%; 105°C, iiyure ezi-5 | Isiphumo neemeko |
| Intsalela emva kokutshiswa | ≤0.15% | Isiphumo nendlela yovavanyo |
| Amanani eentsholongwane | Ezidinga ioksijini ≤100 CFU/g; igwele/ukungunda ≤10 CFU/g | Amanani neendlela zovavanyo |
| Ii-endotoxin | Kufuneka kuvumele ukuthotyelwa kweemfuno ezifanelekileyo zohlobo lweyeza | Umda osebenzayo, ubungqina, ingxelo yokulungiswa |
| Ukupakishwa nokugcinwa | Kuvalwe kakuhle; kukhuselwe ekukhanyeni; ngaphantsi kwe-30°C | Inkcazelo yeemfuno zokupakishwa nengxelo yokugcinwa |
Musa ukuthatha iseti yovavanyo lwezinyithi ezinzima njengendawo yolu hlolo. Kwelinye icala, ukungabikho kwesinyithi esithile esikhankanyiweyo kule theyibhile akuthethi ukuba asibalulekanga. Kwimpendulo yayo ka-2023 kwizimvo nge-methylene blue, i-USP ichaze isigqibo sokusingatha ukungcola kwee-elementi ngesicwangciso sayo esibanzi solawulo lweemveliso zamayeza, kunokugcina iimvavanyo zezinto ezithile kule monografi yesithako seyeza. Buza ukuba zeziphi iimfuno zokungcola kwee-elementi ezisebenza kwimveliso ecetywayo nokuba umboneleli uzixhasa njani. Iseti eyongezelelweyo yovavanyo yomthengisi kunye nemfuneko yemonografi kufuneka zihlale zichongeka njengezinto ezahlukileyo.
Ukuze ube nengxelo yokuthenga enokusetyenziswa, khuphela iphepha lokusebenza lomgangatho namaxwebhu. Liquka iindawo zokubhala inguqulelo, unxibelelwano lwebhetshi, ubungqina obungekhoyo, kunye nemida yebango ngalinye.
Oko kufuneka kuthethwe kukuthi “iqinisekiswe yi-USP”
Cela umthengisi achaze igama lenkqubo. I-USP iqhuba iinkonzo zokuqinisekisa izongezo nezithako, kuquka izithako ezisebenzayo zamayeza. Ezi ziinkqubo ezichaziweyo; ukubakho kwamagama athi “USP” kwinkcazelo yeemfuno akuqinisekisi ukuthatha inxaxheba kuzo.
Umzekelo, i-USP ichaza inkqubo yayo yokuqinisekisa izongezo zokutya njengokungeniswa ngokuzithandela okulandelwa luvavanyo nophicotho ngokwemigaqo yenkqubo. Loo nkqubo ibonelela ngobungqina malunga neemveliso ezingaphakathi kwemida yayo. Ayenzi ukuba zonke izithako okanye iimveliso zenkampani ethatha inxaxheba zibe zizinto eziqinisekisiweyo.
Ukuba umboneleli uthi “i-methylene blue iqinisekiswe yi-USP,” cela igama lenkqubo, isithako okanye imveliso kanye egutyungelwayo, umenzi, kunye nesiqinisekiso sangoku esivela kwi-USP. Ukuba endaweni yoko uxwebhu yi-COA yelabhoratri echaza ukuthotyelwa kweendlela ze-USP, yichaze ngolo hlobo. Ilabhoratri inokwenza uvavanyo ngokomgangatho ngaphandle kokuba ibe ngumbutho opapasha loo mgangatho.
Ukugunyaziswa kwemveliso kufuna ukukhangelwa ngokwahlukeneyo
Xa kubangwa ukuba iyeza livunyiwe e-US, sebenzisa ingxelo yomlawuli yaloo mveliso kanye. Isikhokelo se-FDA sokuhlola ukuba iyeza livunyiwe na sikhokelela abafundi kwi-Drugs@FDA. Qinisekisa ukuba ziyangqinelana iinkcukacha zomfaki-sicelo, igama lemveliso, amandla eyeza, uhlobo lweyeza, indlela yokulinika, kunye neenkcukacha zeelebhile ezivunyiweyo.
Inombolo ye-NDC ayonelanga: i-FDA ithi ukunikwa kwe-NDC akuthethi ukuvunywa. Ngokufanayo, ukuvunywa kweyeza elitofwayo akunakudluliselwa kwisisombululo esiselwa ngomlomo somnye umthengisi ngenxa yokuba zombini zine-methylene blue. Kwelinye ilizwe, hlola irejista yamayeza yelo lizwe kunye nogunyaziso kanye olubangwayo.
Umgangatho okanye i-COA ayiqinisekisi ukuba imveliso ifanele unyango lomntu othile. Ukusetyenziswa ngokutofa kufuna ngokukhethekileyo imveliso yamayeza egqityiweyo efanelekileyo; umgubo okumgangatho wesithako nezisombululo eziqhelekileyo ezisebhotileni azinakusetyenziswa endaweni yayo. Lo mahluko uyasebenza naxa kuhlolwa izongezo ze-methylene blue, iilebhile, nesimo ngokwemithetho yolawulo.
Nxulumanisa amaxwebhu nebhotile
Qala ngenombolo yebhetshi ekwipakethe. Iphepha le-Blupreme lobulunga namaxwebhu eebhetshi lichaza indlela amaxwebhu ayo anxulumanisa ngayo ibhetshi yemveliso nebhetshi yesithako kunye ne-COA yeso sithako. Sebenzisa olo nxibelelwano ukufumana ingxelo efanelekileyo. Inkcazelo yeemfuno ebonisiweyo ayisosiphumo esilinganisiweyo sebhetshi yakho ngokwayo.
Bhala kanye oko ukufumeneyo: isithako esigutyungelwayo, iimvavanyo ezixeliweyo, inguqulelo yenkcazelo yeemfuno, kunye nonxibelelwano nebhetshi yemveliso egqityiweyo. Ukuba uvavanyo olubangwayo alukho, cela uxwebhu oluxhasayo endaweni yokuzalisa eso sikhewu ngegama elithi “USP.” Sebenzisa uluhlu lokuhlola xa kuthengwa i-methylene blue ukuthelekisa ezinye iinkcukacha zemveliso ngaphambi kokwenza isigqibo sokuthenga.