Intranasal drug majority contain ephedrine, the drug for Vasoconstrictor, hypertension patients, children with caution, atrophic rhinitis were banned.

• 滴鼻药多数都含有麻黄素，此药为血管收缩剂，高血压病人、儿童慎用，有萎缩性鼻炎者禁用。