Uzma Saleem, Muhammad Hidayat Rasool, Bashir Ahmad, Waqas Sadiq, Saeed Mahmood, Muhammad Saleem1, Alia Erum
1. College of Pharmacy, Govt. College University, Faisalabad, Pakistan 2. University College of Pharmacy, University of the Punjab, Lahore, Pakistan 3. Lahore General Hospital, Lahore, Pakistan 4. Faculty of Pharmacy, University of Sargodha, Sargodha, Pakistan.
Keywords: Enhanced susceptibility; prochlorperazine; fluoroquinolones; Escherichia coli; Staphylococcus aureus; Streptococcus pyogenes

Combating the problem of microbial resistance is one of the major challenges the medical sciences facing today. Inhibition of resistance mechanism in bacteria seems much better approach than developing new antibiotics only. The present study was aimed to investigate the effect of different concentrations of prochlorperazine in increasing the effectiveness of fluoroquinolones against Escherichia coli, Staphylococcus aureus and Streptococcus pyogenes. The bacteria were isolated from indigenous sources and identified through cultural characteristics, Grams’ staining and biochemical tests. The master suspensions were subjected to viable count and inoculated at the rate of 106 CFU/ml of the media for antimicrobial sensitivity testing. The four fluoroquinolones i.e. ciprofloxacin, levofloxacin, pefloxacin and norfloxacin were first applied to bacterial cultures alone and then in combination with four different concentrations (16µg/ml, 32µg/ml, 64µg/ml and 128µg/ml) of prochlorperazine and inhibition of growth was recorded in terms of diameter of zones of inhibition. A linear relationship was found between the increase in concentration of prochlorperazine and diameter of zones of inhibition against all the fluoroquinolones. The diameter of zones of inhibition were significantly (p<0.05) greater with 128µg/ml of prochlorperazine in combination with all the four fluoroquinolones against Staphylococcus aureus and Streptococcus pyogenes. In contrast E. coli showed significant susceptibility (p<0.05) only to ciprofloxacin and norfloxacin in the presence of prochlorperazine. It was concluded that prochlorperazine is capable of increasing the susceptibility of Staphylococcus aureus, Streptococcus pyogenes and E coli when used in combination with different fluoroquinolones. This approach of hindering the resistance mechanism of bacteria with non-antibiotics can shift many of the resistant strains of bacteria to susceptible.

Article Information

Identifiers and Pagination:
First Page:140
Last Page:146
Publisher Id:JAppPharm (2010 ). 2. 140-146
Article History:
Received:August 13, 2010
Accepted:November 11, 2010
Collection year:2010
First Published:November 21, 2010

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Prof. Dr. Cornelia M. Keck (Philipps-Universität Marburg)
Marburg, Germany


Welcome to the research group of Prof. Dr. Cornelia M. Keck in Marburg. Cornelia M. Keck is a pharmacist and obtained her PhD in 2006 from the Freie Universität (FU) in Berlin. In 2009 she was appointed as Adjunct Professor for Pharmaceutical and Nutritional Nanotechnology at the University Putra Malaysia (UPM) and in 2011 she obtained her Venia legendi (Habilitation) at the Freie Universität Berlin and was appointed as a Professor for Pharmacology and Pharmaceutics at the University of Applied Sciences Kaiserslautern. Since 2016 she is Professor of Pharmaceutics and Biopharmaceutics at the Philipps-Universität Marburg. Her field of research is the development and characterization of innovative nanocarriers for improved delivery of poorly soluble actives for healthcare and cosmetics. Prof. Keck is executive board member of the German Association of Nanotechnology (Deutscher Verband Nanotechnologie), Vize-chairman of the unit „Dermocosmetics“ at the German Society of Dermopharmacy, active member in many pharmaceutical societies and member of the BfR Committee for Cosmetics at the Federal Institute for Risk Assessment (BfR).

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