Journal
CURRENT PHARMACEUTICAL BIOTECHNOLOGY
Volume 13, Issue 12, Pages 2355-2379Publisher
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/138920112803341752
Keywords
Nasal drug delivery; brain; drug targeting; delivery techniques; delivery systems and devices
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The treatment of brain disorders is particularly challenging due to the presence of a variety of formidable obstacles to deliver drugs selectively and effectively to the brain. Blood-brain-barrier (BBB) constitutes the major obstacle to the uptake of drugs into the brain following systemic administration. Intranasal delivery offers a non-invasive and convenient method to bypass the BBB and delivery of therapeutics directly to the brain. The review discusses the potential of intranasal route to deliver drugs to the brain, the mechanisms and pathways of direct nose to brain drug transport, the various factors influencing transnasal drug absorption, the conventional and novel intranasal drug delivery systems, the various intranasal drug delivery techniques and devices, and examples of brain drug transport that have been feasible in treating various brain disorders. Moreover, products on the market, investigational drugs, and the author's perceptions about the prospect of intranasal delivery for treating brain disorders are also been discussed.
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