<unk> s are used to deliver medications locally in the nasal cavities or systemically. They are used locally for conditions such as nasal congestion and allergic rhinitis. In some situations, the nasal delivery route is preferred for systemic therapy because it provides an agreeable alternative to injection or pills. Substances can be assimilated extremely quickly and directly through the nose. Many pharmaceutical drugs exist as<unk> s for systemic administration (e.g. sedative-analgesics, treatments for migraine, osteoporosis and nausea). Other applications include hormone replacement therapy, treatment of Alzheimer's disease and Parkinson's disease.<unk> s are seen as a more efficient way of transporting drugs with potential use in crossing the blood–brain barrier.<unk> ing into a nostril while closing the opposite nostril to assure the dose
Nasal spray
Transdermal spray
Nasal irrigation
Nasal cannula
Throat lozenge
Metered-dose inhaler
Mouthwash
Nebulizer