Azelastine hydrochloride displayed no sensitising potential in the guinea pig. Azelastine demonstrated no genotoxic potential in a battery of in vitro and in vivo tests, nor any carcinogenic potential in rats or mice. In male and female rats, azelastine at oral doses greater than 3 mg/kg/day caused a dose-related decrease in the fertility index; no substance-related alterations were found in the reproductive organs of males or females during chronic toxicity studies, however, embryotoxic and teratogenic effects in rats, mice and rabbits occurred only at maternal toxic doses (for example, skeletal malformations were observed in rats and mice at doses of mg/kg/day).
Mortuaire, G., de Gabory, L., François, M., Massé, G., Bloch, F., Brion, N., ... Serrano, E. Rebound congestion and rhinitis medicamentosa: Nasal decongestants in clinical practice. (2013, June 1). Critical review of the literature by a medical panel. European Annals of Otorhinolaryngology, Head and Neck Diseases , 130(3), 137-144. Retrieved from https:///#!/content/playContent/1--S1879729612001378?returnurl=http:%2F%%2Fretrieve%2Fpii%2FS1879729612001378%3Fshowall%3Dtrue&referrer=https:%2F%2F .