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Nasal administration, popularly known as snorting, is a route of administration in which drugs are insufflated through the nose. It can be a form of either topical administration or systemic administration , as the drugs thus locally delivered can go on to have either purely local or systemic effects.
Nasal sprays 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.
Nasal delivery of this gel demonstrated increased drug concentration in the brain. [17] Oxytocin is a hormone which is observed to alleviate anxiety symptoms in people with autism. Intranasal administration indicated efficient transfer of pharmacologically active oxytocin from nasal cavity to brain. [18]
Route of administration refers to the path a drug takes to enter the body, [10] whereas drug delivery also encompasses the engineering of delivery systems and can include different dosage forms and devices used to deliver a drug through the same route. [11] Common routes of administration include oral, parenteral (injected), sublingual, topical ...
Oral administration of a liquid. In pharmacology and toxicology, a route of administration is the way by which a drug, fluid, poison, or other substance is taken into the body. [1] Routes of administration are generally classified by the location at which the substance is applied. Common examples include oral and intravenous administration ...
Intranasal administration of naloxone via nasal spray has likewise been found to rapidly occupy brain MORs, with peak occupancy occurring at 20 minutes, peak occupancies of 67% at a dose of 2 mg and 85% with 4 mg, and an estimated half-life of occupancy disappearance of approximately 100 minutes (1.67 hours).
Nasal insufflation is the most common method of nasal administration. Other methods are nasal inhalation and nasal instillation. Drugs administered in this way can have a local effect or a systemic effect. The time of onset for systemic drugs delivered via nasal administration is generally only marginally slower than if given intravenously.
A nasal spray is able to bypass the initial layers of the nasal mucosa and deliver the vaccine particles directly to the mucoadhesive layer. [11] The antigen in the nasal vaccine can then trigger an immune response and prevent infection due to nasal vaccines’ accessibility to the immune system.
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