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Chỉ định và Liều dùng
Ophthalmic
Superficial ocular infections Adult: As oint containing bacitracin 500 U and polymyxin B 10,000 U/g: Apply to affected eye(s) 3-4 hrly for 7-10 days, depending on severity of infection. Topical/Cutaneous Superficial infections Adult: As oint containing bacitracin 500 U and polymyxin B 10,000 U/g: Apply thinly to affected area 1-3 times daily, may be covered w/ a sterile bandage.
Child: Same as adult dose. |
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Chống chỉ định
Hypersensitivity to bacitracin or polymyxin B.
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Thận trọng
Prolonged use may cause overgrowth of nonsusceptible organisms, including fungi. Pregnancy and lactation.
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Tác dụng không mong muốn
Burning sensation, local irritation, swelling, conjunctival erythema, pruritus (ophth). Rarely, anaphylaxis.
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Ophth: C
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Tác dụng
Description:
Mechanism of Action: Bacitracin interferes w/ bacterial cell wall synthesis by inhibition of the regeneration of phospholipid receptors involved in peptidoglycan synthesis. It is bactericidal to a number of gram +ve and –ve organisms. Polymyxin B increases the permeability of the bacterial cytoplasmic membrane by interacting w/ the phospholipid components. It is bactericidal to a number of gram –ve organisms. Pharmacokinetics: Absorption: Poorly absorbed from intact or denuded skin, wounds, or mucous membranes. |
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Đặc tính
 Source: National Center for Biotechnology Information. PubChem Database. CID=11980094, https://pubchem.ncbi.nlm.nih.gov/compound/Bacitracin-methylene-disalicylate (accessed on Jan. 21, 2020)  Source: National Center for Biotechnology Information. PubChem Database. Polymyxin b, CID=49800004, https://pubchem.ncbi.nlm.nih.gov/compound/Polymyxin-b (accessed on Jan. 21, 2020) |
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Bảo quản
Store between 15-25°C.
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Phân loại MIMS
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Tài liệu tham khảo
Anon. Bacitracin (Topical). Lexicomp Online. Hudson, Ohio. Wolters Kluwer Clinical Drug Information, Inc. https://online.lexi.com. Accessed 24/01/2017. Anon. Bacitracin and Polymyxin B (Ophthalmic). Lexicomp Online. Hudson, Ohio. Wolters Kluwer Clinical Drug Information, Inc. https://online.lexi.com. Accessed 08/09/2016. Anon. Bacitracin and Polymyxin B (Topical). Lexicomp Online. Hudson, Ohio. Wolters Kluwer Clinical Drug Information, Inc. https://online.lexi.com. Accessed 08/09/2016. Bacitracin Zinc and Polymyxin B Sulfate (E. Fougera & Co., A division of Nycomed US Inc). DailyMed. Source: U.S. National Library of Medicine. https://dailymed.nlm.nih.gov/dailymed/. Accessed 08/09/2016. Bacitracin Zinc and Polymyxin B Sulfate Ointment (Bausch & Lomb Inc). DailyMed. Source: U.S. National Library of Medicine. https://dailymed.nlm.nih.gov/dailymed/. Accessed 08/09/2016. Buckingham R (ed). Bacitracin. Martindale: The Complete Drug Reference [online]. London. Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 08/09/2016. Buckingham R (ed). Polymyxin B Sulfate. Martindale: The Complete Drug Reference [online]. London. Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 08/09/2016. Joint Formulary Committee. Bacitracin w/ Polymyxin B. British National Formulary [online]. London. BMJ Group and Pharmaceutical Press. https://www.medicinescomplete.com. Accessed 01/09/2016. McEvoy GK, Snow EK, Miller J et al (eds). Bacitracin, Bacitracin Zinc (EENT). AHFS Drug Information (AHFS DI) [online]. American Society of Health-System Pharmacists (ASHP). https://www.medicinescomplete.com. Accessed 08/09/2016. McEvoy GK, Snow EK, Miller J et al (eds). Bacitracin, Bacitracin Zinc (Topical). AHFS Drug Information (AHFS DI) [online]. American Society of Health-System Pharmacists (ASHP). https://www.medicinescomplete.com. Accessed 08/09/2016. McEvoy GK, Snow EK, Miller J et al (eds). Polymyxin B Sulfate (EENT). AHFS Drug Information (AHFS DI) [online]. American Society of Health-System Pharmacists (ASHP). https://www.medicinescomplete.com. Accessed 08/09/2016. Polysporin First Aid Antibiotic (Johnson & Johnson Consumer Inc). DailyMed. Source: U.S. National Library of Medicine. https://dailymed.nlm.nih.gov/dailymed/. Accessed 08/09/2016.
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