Naslov
Thermoanalytical, spectroscopic and chromatographic approach to physicochemical compatibility investigation of 5-aminosalicylates and folic acid

Autori
Jeličić, Mario-Livio ; Brusač, Edvin ; Kurajica, Stanislav ; Cvetnić, Matija ; Amidžić Klarić, Daniela ; Nigović, Biljana ; Mornar, Ana

Izvornik
Croatica chemica acta (0011-1643) 94 (2021), 1; 25-33

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
balsalazide ; olsalazine ; folic acid ; fixed-dose combination ; physicochemical compatibility ; FTIR ; DSC ; XRPD ; chromatography

Sažetak
Fixed-dose combinations have shown to be a great alternative to traditional polytherapy ; however, development of such formulation requires thorough physicochemical compatibility investigation of active pharmaceutical ingredients to provide a stable, safe and therapeutically effective product. In this work, differential scanning calorimetry, X-ray powder diffraction, isothermal stress testing followed by Fourier-transform infrared spectroscopy and chromatographic analysis as well as dissolution studies were used for physicochemical compatibility investigation of folic acid and balsalazide or olsalazine. Balsalazide and olsalazine as well as their blend were successfully characterised regarding their physicochemical properties using the mentioned techniques. Differential scanning calorimetry gave ambiguous results due to premature degradation of balsalazide. On the contrary, other techniques have implied the absence of any chemical reactions or physical changes in prepared blends. Obtained result imply that folic acid is compatible with both balsalazide and olsalazine which goes in favour of developing proposed fixed-dose combinations.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Farmacija

POVEZANOST RADA