Direct access of drugs to the human brain after intranasal drug administration?

Paul Merkus*, Henk Jan Guchelaar, D. Andries Bosch, Frans W.H.M. Merkus

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


It has been suggested that intranasal (IN) drug delivery could be used to administer drugs directly to the brain, bypassing the blood-brain barrier. Conclusive evidence of this proposed route of drug transport has not been observed by IN-IV comparison. In eight neurosurgery patients with a CSF drain, the uptake in CSF and plasma after IN and IV drug administration was compared. No evidence of direct access of the drugs from the nose to the CSF was found.

Original languageEnglish
Pages (from-to)1669-1671
Number of pages3
Issue number10
Publication statusPublished - 27 May 2003

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