Page 216 - Pharmaceutics IV (02-06-01305)
P. 216
30/03/2024
Site of drug
spray &
absorption
Dr ALyaa Ramadan, AU 7
7
Pathways for nasal absorption
e Absorption through the olfactory neurons
- transneuronal absorption. Olfactory epithelium is considered
as a portal for substances to enter CNS
e Absorption through the supporting cells & the surrounding
capillary bed
- venous drainage
e Absorption into the cerebrospinal fluid
Dr ALyaa Ramadan, AU 8
8
4
