Poisons Information Centre, Department of Paediatrics and Child Health, Red Cross War Memorial Children’s Hospital and University of Cape Town, Cape Town, South Africa Centre for Occupational and Environmental Health Research, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa Department of Paediatrics and Child Health, Red Cross War Memorial Children’...

In order to formulate an efficient and durable mucoadhesive drug delivery system, careful consideration of formulation-related parameters is critical. This study was conducted to investigate the effect of the presence of various types and concentrations of surfactants within or outside Carbopol 934 (C934) as well as hydroxypropylmethyl cellulose (HPMC) solid compacts, on their duration of mucoa...

In order to formulate an efficient and durable mucoadhesive drug delivery system, careful consideration of formulation-related parameters is critical. This study was conducted to investigate the effect of the presence of various types and concentrations of surfactants within or outside Carbopol 934 (C934) as well as hydroxypropylmethyl cellulose (HPMC) solid compacts, on their duration of mucoa...

PURPOSE The authors aimed to produce a new tear substitute capable of providing both lubrication and nutrition, based on a novel nutrient-containing therapeutic ocular surface medium (TOSM). METHODS Viscous substances, including hypromellose (HPMC), carbopol, and sodium hyaluronate (SH) were added to the TOSM at various concentrations. Three commercial preservative-free artificial tear substi...

Using a strain-controlled rheometer, rhelogical characterization of carbopol 940 has been made in steady shear and start-up flow fields. In this study, aqueous carbopol 940 solutions with different concentrations were used to provide a fundamental information in application of pharmaceutical and cosmetic areas.

Mucoadhesive vaginal tablets of tenofovir disoproxil fumarate (TDF) have been formulated using hydroxypropyl methylcellulose (HPMC K100) as the matrix forming retarding agent with various mucoadhesive polymers such as carbopol 934, 940, chitosan and sodium carboxymethylcellulose and evaluated. Wet granulation method was employed to make the tablets. Drug-excipient compatibility, precompression ...

Purpose: Ciprofloxacin, an antibacterial agent, is having low solubility in aqueous solution and high rate of absorption from the stomach. It is precipitated at alkaline pH which leads to erratic absorption of the drug from small intestine. To overcome these difficulties, many researchers have prepared different formulations of Ciprofloxacin. But till now very few formulations are available fro...

Localized fluoride delivery to the oral cavity is important in caries prevention. However, no current marketed dosage forms deliver fluoride for an extended period. This work describes the effect of poly (methyl vinyl ether-co-maleic anhydride) mixed calcium/sodium salt (Gantrez MS), sodium carboxymethylcellulose (NaCMC), polyethylene glycol 8000 (PEG8000) and Carbopol 934 (C934) on the in vitr...

for prolonging the time that drug remains in stomach, new methods used as floating drug delivery systems, that available in various forms such as floating tablets. these systems enhance drug absorption and decrease plasma concentration fluctuations. iron deficiency and its inadequate absorption in diet are of community health problems. for prolonging the time that drug remains in stomach, new m...

hypertension crisis is one of the main health problems and its effective treatment is of high importance. for this purpose, fast-disintegrating and sustained release formulations of captopril, as a drug of choice, were prepared using conventional mucoadhesive polymers hydroxypropyl methylcellulose (hpmc), sodium carboxymethyl cellulose (na-cmc), hydroxypropyl cellulose (hpc), carbopol 934 (cp93...