Nasal spray sodium chloride or sea water), isotonic (0.9% sodium chloride) and hypotonic (0.65% sodium chloride). Isotonic solutions have the same salt concentration as the human body, whereas hypertonic solutions have a higher salt content and hypotonic solutions have a lower salt content. Isotonic saline nasal sprays are commonly used in infants and children to wash out the thick mucus from the nose in case of allergic rhinitis. Hypertonic solutions may be more useful at drawing moisture from the mucous membrane and relieving nasal congestion. Natural nasal sprays that include chemical complexes derived from plant sources such as ginger, capsaicin and tea-tree
Nasal administration (Europe) is delivered intranasally. Flumist is a Quadrivalent Vaccine which contains four vaccine virus strains: an A/H1N1 strain, an A/H3N2 strain and two B strains. FluMist Quadrivalent contains B strains from both the B/Yamagata/14/88 and the B/Victoria/2/87 lineages. It has been approved by the CDC for vaccinating all eligible people between 2 and 49 years of age. There is about 20 mL capacity in the adult human nasal cavity. The major part of the approximately 150 cm surface in the human nasal cavity is covered by respiratory epithelium, across which systemic drug absorption can be achieved. The olfactory epithelium is