Adverse reactions reported in controlled clinical trials and long-term open studies in 595 patients treated with Flunisolide Nasal Solution are described below. Of these patients, 409 were treated for 3 months or longer, 323 for 6 months or longer, 259 for 1 year or longer, and 91 for 2 years or longer. In general, side effects elicited in the clinical studies have been primarily associated with the nasal mucous membranes. The most frequent complaints were those of mild transient nasal burning and stinging, which were reported in approximately 45% of the patients treated with Flunisolide Nasal Solution in placebo-controlled and long-term studies. These complaints do not usually interfere with treatment, in only 3% of patients was it necessary to decrease dosage or stop treatment because of these symptoms.