Popis: |
Currently the nasal route has been utilized for local delivery of drugs for treating nasal allergy, congestion, and infections. However, the use of a nasal route for systemic drug delivery has begun for drugs requiring rapid onset of action or need to avoid first pass effect through the oral route. The diseases of CNS like epilepsy, migraine, Alzheimer’s etc. desires direct drug delivery to the brain for the treatment and nasal drug delivery system exhibited promising results for some of such CNS diseases and disorders. Various dosage forms for nasal drug delivery have been formulated and evaluated by various researchers like nasal sprays, nasal pumps, nasal gels, solutions, suspensions, micro emulsions, mucoadhesive gels, mucoadhesive microspheres, and dry powder formulations. |