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Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas

Author(s):  Choo Winnie

Issue:  Jul/Aug 2017 - Volume 21, Number 4
View All Articles in Issue

Page(s):  282-289

Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas Page 1
Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas Page 2
Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas Page 3
Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas Page 4
Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas Page 5
Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas Page 6
Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas Page 7
Simple Preparation of Timolol 0.5% Gel from Eye Drop Solution for Superficial Infantile Hemangiomas Page 8

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Abstract:  The discovery of beta-adrenergic blocker effects on infantile hemangiomas has affected the choice of treatment in recent years. Oral propranolol is effective in treating infantile hemangiomas, but the risk of systemic side effects remains a concern. Data from literature review reported positive clinical outcomes with no major adverse effects observed in children using topical beta-blocker such as timolol maleate. Topical application of timolol eye drop has been mentioned in few studies, most of which reported that the solution cannot stay on the site of application due to its fluidity. Adding hydroxyethyl cellulose into a timolol solution increased its viscosity by forming a hydrogel and thus changed the rheology property. The compounded timolol gel exhibited thixotropy property allowing better and longer contact at sites of application. Experimental data from literature review showed desirable characteristics and measurable flux of timolol across human stratum corneum. Gel dosage form allows easy and precise application and maximizes timolol’s therapeutic efficacy at the sites of application.

Related Keywords: Winnie Choo, BSc Pharmacy (Hons), infantile hemangioma, strawberry birthmark, beta-adrenergic antagonists, beta blockers, timolol maleate, topical preparation, infants, children, formulation, timolol eye drops, 2-hydroxyethyl cellulose, transdermal permeability, skin permeation, stability, sterility, microbial contamination

Related Categories: DERMATOLOGY, FORMULATIONS, PEDIATRICS, ADVERSE DRUG EVENTS, DOSAGE FORMS/DRUG CARRIERS, NEUROLOGY

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