With frequent and / or prolonged use - irritation and / or dryness of the mucous membrane of the nasopharynx, burning, tingling, sneezing, hypersecretion; edema of the nasal mucosa, palpitation,tachycardia, arrhythmia, hypertension, headache, vomiting, insomnia, visual disturbances, depression (with prolonged use of high doses).
If the above symptoms occur, discontinue use and consult a doctor.