Drugs online research references
Cutis. 1981 Feb;27(2):196-7, 201, 207.
Minocycline treatment of tetracycline-resistant and tetracycline-responsive acne vulgaris.
Rossman RE.
The purpose of the study presented herein was to determine the safety and efficacy of minocycline in patients whose acne vulgaris failed to respond adequately to tetracycline therapy and to confirm continued improvement in tetracycline-responsive patients when minocycline was substituted for tetracycline. Thirty-six acne vulgaris patients were given oral tetracycline (250 mg four times a day) for six weeks, followed by oral minocycline (50 mg three times a day) for six weeks. An analysis of the increase or decrease in total lesion counts obtained at biweekly intervals revealed that minocycline caused statically significant improvement both in patients who did not respond to tetracycline and in patients who did respond to tetracycline. Patients who did not respond to tetracycline therapy achieved a mean decrease of 54 percent in lesions after after six weeks of minocycline treatment. In tetracycline-responsive patients, six weeks' treatment with tetracycline caused a 33.5 percent mean decrease in the lesion count. When these patients received minocycline for a subsequent six-week period, the mean lesion count decreased by an additional 60 percent. Only one patient developed a side effect: severe itching and urticaria in a minocycline-treated subject warranted discontinuance of therapy. Minocycline was a safe and effective agent in the treatment of acne both in tetracycline-resistant and in tetracycline-responsive patients.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=6452986&dopt=Abstract
allserv.rug.ac.be
A total of 76 E. faecium strains, isolated at retail level from raw poultry meat, cheese, raw pork, and preparations of cheese and raw pork, were tested for their susceptibility and resistance to growth-promoting antibacterials used in animals and antibiotics used therapeutically in humans. All strains were uniformly susceptible to the growth promoters bambermycin and avilamycin. Resistance against bacitracin, virginiamycin and narasin was high among strains from poultry meat. With tylosin, a macrolide antibiotic used therapeutically and for growth promotion, resistance was mainly detected in strains originating from poultry meat, though also in some strains from pork and from pork and cheese preparations. The therapeutic antibiotic dalfopristin/quinupristin did not show full cross-resistance with the growth-promoting antibiotic virginiamycin. With dalfopristin/quinupristin two different levels of resistance were found. Only one E. faecium strain isolated from poultry was resistant to the glycopeptides avoparcin and vancomycin. Only one poultry meat strain was highly resistant to ampicillin. However, nearly all poultry meat strains showed decreased sensitivity. Only 3 out of 24 poultry strains were susceptible to minocycline, while all strains from other origins were susceptible to this tetracycline antibiotic. High-level streptomycin resistance was seen in strains of all origins, though infrequently. High-level gentamicin resistance was not found.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10777068&dopt=Abstract
Am J Clin Pathol. 1978 Apr;69(4):410-3.
Susceptibilities of Pseudomonas species to tetracycline, minocycline, gentamicin, and tobramycin.
Tilton RC, Steingrimsson O, Ryan RW.
Members of the genus Pseudomonas are widely implicated in human disease. Although most isolates are P. aeruginosa, there have been serious outbreaks of infection with other members of the genus. The susceptibility patterns of 5) Pseudomonas isolates are reported. It was notable that of the four antibiotics tested, uniform susceptibility was observed with minocycline.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=645640&dopt=Abstract
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