Formulation, evaluation, and Pharmacodynamic investigation of Ziprasidone-b-cyclodextrin in-situ nasal gel

Ziprasidone hydrochloride is an atypical antipsychotic agent with an anti-schizophrenic activity having less solubility and less bioavailability. The nasal route acts as a promising delivery route for CNS targeting drugs due to improved bioavailability and can reduce peripheral side effects.

The main aim of the study is to prepare an in-situ nasal gel of ziprasidone-b-cyclodextrin for improvement in the bioavailability of the drug. The in-situ gel was optimized using box-Behnken design. The optimized formulation was evaluated for homogeneity, viscosity, gelation temperature, mucoadhesive strength, in-vitro permeation studies. The pharmacodynamic activity of in-situ nasal gel was checked using the locomotor activity model.

According to the statistical analysis of the design expert software, all the models were found significant. The pharmacodynamic investigation of the cyclodextrin mediated in situ nasal gel showed improvement in drug activity compared to a drug, drug-complex given by oral route indicating the nasal delivery of antipsychotic drug improves its effect.