An eye is the most precious and easily accessible organ of the body. It possesses easy route to local drug delivery and is a way to non-invasive clinical treatment of ocular diseases. Ocular delivery in spite of possessing various advantages has the limitation of poor bioavailability and low permeability across the cornea thus, limiting the efficacy of drugs. Therefore, various carrier systems ...

The aim of this study was to increase bioavailability of the antiviral drug acyclovir (ACV) when administered by the ocular route. For this purpose, a new lipophilic derivative of acyclovir was synthesized, both possessing greater lipophilicity and providing the formation of a homogeneous water dispersion with higher amount of ACV than the aqueous solution of the parent drug. This was done by c...

The aim of the study was to investigate the tolerance and pharmacokinetics of dexamethasone (DEX)-loaded poly(lactic acid-co-glycolic acid) nanoparticles (DEX-NPs) in rabbits after intravitreal injection. The DEX-NPs were prepared and characterized in terms of morphology, particle size and size distribution, encapsulation efficiency, and in vitro release. Ophthalmic investigations were performe...

PURPOSE Nerve growth factor (NGF) has been shown to inhibit retinal ganglion cell (RGC) degeneration when injected intraocularly in animal models of ocular hypertension, optic nerve transaction, and ischemia. The present study sought to establish the bioavailability of topical NGF to the retina and optic nerve in rats. METHODS Autoradiography was performed to evaluate whether exogenous (125)I...

Purpose Age-related macular degeneration (AMD) is a slowly progressing disease, and risk appears to be tied to an overactive complement system. We have previously demonstrated that mouse choroidal neovascularization (CNV) and smoke-induced ocular pathology can be reduced with an alternative pathway (AP) inhibitor fusion protein consisting of a complement receptor-2 fragment linked to the inhibi...

Abstract For many years, cyclodextrins (CDs) have been the object of attention for their capability improving stability, solubility and bioavailability numerous molecules interest, including drugs nutraceuticals. They low toxicity this reason employed different routes administration, oral, ocular, nasal parenteral. Among them, hydroxypropyl-?-cyclodextrin (HP-?-CD) is least toxic. Several physi...

Plasma concentration-time data after oral and intravenous administration of dexamethasone have been subjected to pharmacokinetic analysis in six neurological or neurosurgical patients taking the steroid with phenytoin, and in nine patients (one studied twice) taking dexamethasone without phenytoin. An additional patient was studied before and during phenytoin intake. Apparent volume of distribu...

Delivery of the drug to ocular area is blocked by protective layers covering eyes; it has always been a major problem find effective bioavailability active in due short duration precorneal majority stay. Direct delivery systems combine as well oil, solution, and suspension, result, many are not able effectively treat eye diseases. Many works have done being overcome this one which use in-situ b...

Introduction: This study is to formulate the Euterpe Oleracea in-situ gel for better treatment of conjunctivitis. The ophthalmic drug solution can treat ocular infections effectively. Aim: Formulation and evaluation Eutepe conjunctivitis Methodology: containing prepared by using different polymers like carbopol-940, HPMC K15, K100, K4M, as a pH triggered gelling system, these are used controlle...

Aim: The development and optimization of Ketorolac tromethamine-loaded polylactic-co-glycolic acid nanoparticles (KT-NPs) for the treatment inflammatory processes eye. Materials & methods: KT-NPs were developed by factorial design characterized assessing their physicochemical properties. Biopharmaceutical behavior studies, ocular tolerance, anti-inflammatory efficacy bioavailability tests p...