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Stability of self-prepared fortified antibiotic eyedrops.
Kaohsiung J Med Sci. 1999 Feb; 15(2):80-6.KJ

Abstract

Self-prepared fortified antibiotic eye drops are essential for the severe ocular infection. The relation of potency decay and storage conditions including temperature, concentration and duration were studied by the changes of MIC. 1% and 10% amikin, 10% and 50% pipril, and 5% and 25% vancomycin were diluted from the prarenteral antibiotics with the 5% glucose and storage at 4, -18 and -80 degrees C for 3, 7, 14 and 28 days. MICs of amikin against Pseudomonas aeruginosa, pipril and vancomycin against Staphylococcus aureus were determined by the agar diffusion method. Fluctuations of the MIC were noted during the observation period. Most of the significant changes of MIC were found during the first 7 days. When the potencies between time of zero and 28 days are compared, only 10% pipril and 25% vancomycin stored at -80 degrees C had significant change. Our conclusion is that all of the fortified antibiotic eye drops in this study can be stored in the house refrigerator or freezer for up to 28 days. High concentration may show a negative result of the preservation. Temperature does not influence the preservative effect within four weeks' observation.

Authors+Show Affiliations

Department of Ophthalmology, Kaohsiung Medical College, Taiwan, Republic of China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

10089717

Citation

Lin, C P., et al. "Stability of Self-prepared Fortified Antibiotic Eyedrops." The Kaohsiung Journal of Medical Sciences, vol. 15, no. 2, 1999, pp. 80-6.
Lin CP, Tsai MC, Sun CY, et al. Stability of self-prepared fortified antibiotic eyedrops. Kaohsiung J Med Sci. 1999;15(2):80-6.
Lin, C. P., Tsai, M. C., Sun, C. Y., Chen, J. Y., & Lin, S. R. (1999). Stability of self-prepared fortified antibiotic eyedrops. The Kaohsiung Journal of Medical Sciences, 15(2), 80-6.
Lin CP, et al. Stability of Self-prepared Fortified Antibiotic Eyedrops. Kaohsiung J Med Sci. 1999;15(2):80-6. PubMed PMID: 10089717.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Stability of self-prepared fortified antibiotic eyedrops. AU - Lin,C P, AU - Tsai,M C, AU - Sun,C Y, AU - Chen,J Y, AU - Lin,S R, PY - 1999/3/25/pubmed PY - 1999/3/25/medline PY - 1999/3/25/entrez SP - 80 EP - 6 JF - The Kaohsiung journal of medical sciences JO - Kaohsiung J Med Sci VL - 15 IS - 2 N2 - Self-prepared fortified antibiotic eye drops are essential for the severe ocular infection. The relation of potency decay and storage conditions including temperature, concentration and duration were studied by the changes of MIC. 1% and 10% amikin, 10% and 50% pipril, and 5% and 25% vancomycin were diluted from the prarenteral antibiotics with the 5% glucose and storage at 4, -18 and -80 degrees C for 3, 7, 14 and 28 days. MICs of amikin against Pseudomonas aeruginosa, pipril and vancomycin against Staphylococcus aureus were determined by the agar diffusion method. Fluctuations of the MIC were noted during the observation period. Most of the significant changes of MIC were found during the first 7 days. When the potencies between time of zero and 28 days are compared, only 10% pipril and 25% vancomycin stored at -80 degrees C had significant change. Our conclusion is that all of the fortified antibiotic eye drops in this study can be stored in the house refrigerator or freezer for up to 28 days. High concentration may show a negative result of the preservation. Temperature does not influence the preservative effect within four weeks' observation. SN - 1607-551X UR - https://www.unboundmedicine.com/medline/citation/10089717/Stability_of_self_prepared_fortified_antibiotic_eyedrops_ L2 - https://medlineplus.gov/antibiotics.html DB - PRIME DP - Unbound Medicine ER -