Benzocaine yog dab tsi
Ethyl p-aminobenzoate, tseem hu ua benzocaine, tshuaj formula yog C9H11NO2, yog cov organic compound. Nws yog xim tsis muaj xim rhomboid siv lead ua, tsw thiab tsis qab. Soluble nyob rau hauv cawv, ether, chloroform, soluble nyob rau hauv almond roj, txiv roj roj, dilute acid, insoluble nyob rau hauv dej.
Benzocaine yog ib qho tshuaj loog hauv zos uas tuaj yeem siv rau ntawm cov paj hlwb ntawm daim tawv nqaij thiab cov mucous membranes los thaiv cov hlab ntsha impulses thiab ib ntus poob ntau yam kev xav. Nws tuaj yeem ua rau tuag tes tuag taw cov hlab ntsha xaus thiab ua rau mob nyem thiab tiv thaiv pruritic. Benzocaine yog ib qho inhibitory hlab ntsha excitation tivthaiv muaj nyob rau hauv nws, thiab siv mus ntev yuav txo tau lub zos rhiab heev.
Feem ntau siv benzocaine
1. Nws yog siv los txhim kho txiv neej rhiab heev. Tom qab txiv neej siv, nws tuaj yeem txo qhov rhiab heev ntawm cov glans thiab ua kom ntev lub sijhawm ntawm kev sib deev.
2. Cov tshuaj loog hauv zos, siv los txo qhov khaus thiab mob hauv qhov txhab, qhov txhab thiab hemorrhoids, nrog rau qhov concentration ntawm 5 mus rau 20 feem pua, thiab tseem siv los ua cov tshuaj intermediates hauv tshuaj synthesis thiab organic synthesis.
3. Ultraviolet absorber. Feem ntau yog siv tshuaj pleev thaiv hnub thiab tshuaj pleev ib ce, nws yog tshuaj lom neeg ruaj khov rau lub teeb thiab huab cua, nyab xeeb rau ntawm daim tawv nqaij, thiab muaj peev xwm tsim tau ib zaj duab xis ntawm daim tawv nqaij. Nws tuaj yeem nqus tau ultraviolet rays hauv thaj tsam 280-320μm nruab nrab yoj lub teeb hauv cheeb tsam UVB. Qhov nyiaj ntxiv yog feem ntau yog li 4 feem pua.
Kev noj tshuaj
1. Siv 20 feem pua siv rau pob ntseg. Cov neeg laus tuaj yeem siv 4 mus rau 5 tee ntawm ib lub sijhawm, drips rau hauv cov kwj dej sab nraud, thiab rov ua haujlwm rau 1 mus rau 2 teev raws li xav tau. Feem ntau, cov paj rwb yuav tsum tau siv los thaiv pob ntseg tom qab pob ntseg poob los tiv thaiv kev tawm; cov me nyuam feem ntau tsis siv.
2. Cov tshuaj pleev 5 feem pua, 20 feem pua, rau cov neeg laus rau cov hemorrhoids, siv rau thaj tsam cuam tshuam, ib zaug thaum sawv ntxov, yav tsaus ntuj thiab tom qab defecation; tsis yog rau menyuam yaus.
3. 20 feem pua aerosol tov, uas tuaj yeem siv tau ntau zaus raws li qhov xav tau ntawm daim tawv nqaij lossis cov mucous membranes; tsis tas rau cov menyuam yaus hnub nyoog qis dua 3 xyoos. Cov gel yog 20 feem pua, feem ntau yog siv rau thaj tsam ntawm cov pos hniav hauv qhov ncauj kom tsis txhob mob hniav. Cov gel rau cov menyuam yaus yog 5 feem pua.
4. 10 feem pua rau 20 feem pua ntawm cov kua tshuaj tsuag, tshuaj tsuag rau ntawm thaj chaw muaj kev cuam tshuam, rov ua dua raws li xav tau, thiab siv ceev faj rau cov menyuam yaus.
Thaum siv benzocaine
1. Cov neeg mob uas ua xua rau benzocaine, cov neeg mob uas muaj kab mob periodontitis, incisor filling thiab cov neeg mob uas muaj keeb kwm ntawm methemoglobinemia yog contraindicated.
2. Cov kev npaj sab nraud yuav tsum tsis txhob siv rau cov menyuam yaus hnub nyoog 1-2, thiab lawv yuav tsum tau siv raws li kev cob qhia kws tshaj lij tom qab ntsuas qhov zoo thiab qhov tsis zoo ntawm qhov xwm txheej tshwj xeeb.
Benzocaine Ceev faj
1. Rau kev siv sab nraud nkaus xwb.
2, cov dej tsis zoo solubility, ua haujlwm ntawm daim ntawv thov hauv zos, qhov nqus dej tsawg heev.
3. Cov menyuam yaus yuav tsum tau siv nrog ceev faj hauv koob tshuaj loj, vim tias muaj kev pheej hmoo ua rau methemoglobinemia.
4. Cov tshuaj yuav tsum tsis txhob siv rau hauv cheeb tsam loj. Yog tias nws siv tsis tu ncua tsawg dua 1 lub lis piam, yog tias tsis muaj kev txhim kho, thov mus ntsib kws kho mob.
5. Yog tias muaj qhov liab los yog o ntawm qhov chaw tshuaj, tso tseg cov tshuaj, ntxuav cov tshuaj hauv zos, thiab sab laj nrog kws kho mob yog tias tsim nyog.
