|Conţinutul numărului revistei|
| SM ISO690:2012|
RUS, Lucia Maria; DONICI, Elena; VALICA, Vladimir; PRISACARI, Viorel; TOMUTA, Ioan; SHEPEL, Diana; HEGHES, Simona Codruta; IUGA, Cristina Adela; UNCU, Livia. Development, physical-chemical characterization and in vitro antibacterial activity evaluation of a fixed-dose combination isohydrafural-methyluracil hydrophilic ointment. In: Farmacia. 2019, nr. 5(67), pp. 857-865. ISSN 0014-8237.
|Numărul 5(67) / 2019 / ISSN 0014-8237|
This research was focused on the pharmaceutical development of a novel, fixed-dose combination isohydrafural-methyluracil ointment on a water soluble base-polyethylene glycol (PEG). Differential scanning calorimetry (DSC) and Fourier transform infra-red spectroscopy (FTIR) were applied in order to determine the compatibility between active pharmaceutical ingredients (APIs) and between APIs-excipients. Nine formulations (F1-F9) were tested for: physical appearance and homogeneity, pH, viscosity and osmotic activity. The optimal formulation presented the concentrations of PEG 400-76.72%, PEG 1500-19.18% and a fixed-dose combination of 0.1% isohydrafural and 4% methyluracil. It showed higher antibacterial properties both to Gram-positive and Gram-negative bacteria than nitrofural 2% ointment (Furacilin®, Belarus). The long-term stability testing of the optimized formulation of isohydrafural and methyluracil revealed the shelf-life of two years.
In vitro antibacterial activity, Pharmaceutical preformulation, Stability evaluation