Drugs   Temperature range °C Ea/kJ mol-1 n A. Sec-1 CR
    HM   CR HM  CR  
Azelastine 294.51 345.6 141 132.88 1 1 7.66 ×1010
Emedastine 218.32 298.07 123.75   114.26 1 1 3.12 ×1010
Table 1: Kinetic parameters obtained by the methods of Horowitz, Metzger (HM) and Coats Redfern (CR) for azelastine HCl and emedastine difumarate.