Ask a doctor before use if you have: heart disease high blood pressure thyroid disease diabetes trouble urinating due to an enlarged prostate gland. When using this product: do not use more than directed do not use for more than 3 days use only as directed frequent or prolonged use may cause nasal congestion to recur or worsen may cause temporary discomfort such as burning, stinging, sneezing or an increase in nasal discharge the use of this container by more than one person may spread infection. Stop use and ask a doctor if symptoms persist. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. If swallowed, get medical help or contact a poison control center right away. Do not use if seal imprinted with "dristan" on bottle is broken or missin.