Application of Shewhart Control Charts in the Inspection of Pharmaceutical Manufacturing Process
Issue:
Volume 5, Issue 1, January 2019
Pages:
1-11
Received:
1 January 2019
Accepted:
31 January 2019
Published:
22 February 2019
Abstract: Control charts, also known as Shewhart Control charts, are used to determine if a manufacturing process is in a state of statistical control. This article illustrates the use of charts to evaluate pharmaceutical manufacturing process variability. According to the characteristics and control requirements of quality parameters, several types of typical parameters were introduced to illustrate the detection results and create the control charts in order to confirm whether the production was under control. Expedite the operator discovering the process variation caused by special factors, and taking corrective actions so that the products consistently complied with the regulatory specifications and production instructions.
Abstract: Control charts, also known as Shewhart Control charts, are used to determine if a manufacturing process is in a state of statistical control. This article illustrates the use of charts to evaluate pharmaceutical manufacturing process variability. According to the characteristics and control requirements of quality parameters, several types of typic...
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Evaluation of Amlodipine Inhibition and Antimicrobial Effects
Ziyue Yi,
Zhu Pei,
Ma Xiaoyan
Issue:
Volume 5, Issue 1, January 2019
Pages:
12-14
Received:
19 February 2019
Accepted:
25 March 2019
Published:
15 April 2019
Abstract: Antibiotic resistant pathogens is the an urgent challenge of the medicine field. To counter these pathogens, the antibiotic assisting drugs is an ideal choice. Assisting drugs can improve the efficiency of the treatment without further induce of antibiotic resistance. Amlodipine (AML) is one of the most common generic cardiovascular drug for lowering blood pressure. In previous studies, amlodipine was suggested to have some antibiotic properties. The MIC is not very low for amlodipine against these pathogens. However, the findings imply amlodipine potential to be repurposed as assisting drug and its inhibition of β-lactamase. To further discover and verify its potential of antimicrobial drug, amlodipine was tested for β-lactamase inhibition, and its synergistic effects were investigated against methicillin-resistant Staphylococcus aureus (MRSA). The compound was found to inhibit β-lactamase mixture (3 distinct species) in broad spectrum. Cephalosporins requires high concentration (>=64 ug/ml) to inhibit MRSA; combine both amlodipine and cephalosporins, the MIC only requires 8ug/ml (4 ug/ml amlodipine + 4 ug/ml Cefuroxime) in total, with FIC lower than 0.1 for strong synergistic effect. Both enzyme assay and bacterial tests indicate amlodipine as an ideal assisting drug for antibiotics; one of the mechanism is β-lactamase inhibition.
Abstract: Antibiotic resistant pathogens is the an urgent challenge of the medicine field. To counter these pathogens, the antibiotic assisting drugs is an ideal choice. Assisting drugs can improve the efficiency of the treatment without further induce of antibiotic resistance. Amlodipine (AML) is one of the most common generic cardiovascular drug for loweri...
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