Intranasal (in.) administration has been garnering increasing popularity as a non-invasive approach to deliver drugs directly to the brain. This approach involves the respiratory or olfactory epithelia of the nasal mucosa through which the drugs reach the central nervous system (CNS).
The nose-brain pathway: Exploring the role of trigeminal nerves in delivering intranasally administered antidepressant

Biochemistry laboratory research, Scientist or medical in lab coat holding test tube with Using Microscope reagent with drop of color liquid over glass equipment working at the laboratory.
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