2013
DOI: 10.1002/jps.23533
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Photostability of Crystalline Versus Amorphous Nifedipine and Nimodipine

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Cited by 15 publications
(10 citation statements)
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“…These results indicate that the photolysis of NIF in ASD and PM was inhibited by PCS. The greater stability of crystalline chemicals than their amorphous forms 11,12,18) may be partly explained for the differences in photostability between ASD and PM. In added, these findings may be explained by the differences of NIF state in between crystalline and amorphous.…”
Section: Resultsmentioning
confidence: 99%
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“…These results indicate that the photolysis of NIF in ASD and PM was inhibited by PCS. The greater stability of crystalline chemicals than their amorphous forms 11,12,18) may be partly explained for the differences in photostability between ASD and PM. In added, these findings may be explained by the differences of NIF state in between crystalline and amorphous.…”
Section: Resultsmentioning
confidence: 99%
“…In irradiation test, the amounts of NIF remaining in ASD and PM using PCS were greater than those of control PM without PCS. Several researches 11,12,18) reported that the amorphous state undergoes more rapid photodegradation than the corresponding crystalline state. However, in this study, the photostability of amorphous NIF in ASD was markedly improved compared with that of crystalline NIF in control PM.…”
Section: Resultsmentioning
confidence: 99%
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“…Stałe preparaty, które występują np. w formie liofilizatów, stałych dyspersji czy proszków suszonych rozpyłowo mogą charakteryzować się większą światłoczułością niż krystaliczna postać tego samego związku [6]. Zasadniczo wybór formy próbki do badania powinien być uwarunkowany postacią, w jakiej występuje w gotowym produkcie leczniczym.…”
Section: Badania Fotostabilności Substancji Leczniczychunclassified
“…Diclofenac is known to undergo photodegradation at the chlorine atoms, but this can be retarded by complexing the drug substance with 2-hydroxypropyl-β-cyclodextrin ( Figure 32.4) [6]. Groof and coworkers demonstrated how the rate of decomposition is related to the physical form, with amorphous nifedipine degrading at about double the rate of its crystalline counterpart [7]. Groof and coworkers demonstrated how the rate of decomposition is related to the physical form, with amorphous nifedipine degrading at about double the rate of its crystalline counterpart [7].…”
Section: Photolysismentioning
confidence: 99%