Posts tagged with "ethyl cellulose"



21. September 2018
Three-dimensional (3D) printing was discovered in the 1980s, and many industries have embraced it, but the pharmaceutical industry is slow or reluctant to adopt it. Spiritam® is the first and only 3D-printed drug product approved by FDA in 2015. Since then, the FDA has not approved any 3D-printed drug product due to technical and regulatory issues. The 3D printing process cannot compete with well-established and understood conventional processes for making solid dosage forms. However,...

Overview graph for the literature and patents on pharmaceutic solid dispersion form 1980 to 2015
20. July 2018
Solid dispersions are an effective formulation technique to improve the solubility, dissolution rate, and bioavailability of water-insoluble drugs for oral delivery. In the last 15 years, increased attention was focused on this technology. There were 23 marketed drugs prepared by solid dispersion techniques. Objective: This study aimed to report the big picture of solid dispersion research from 1980 to 2015. Method: Scientific knowledge mapping tools were used for the qualitative and the...

Graphic with the three stages modeling, preparing and dissolution of internal scaffold structre tablets
11. January 2018
The object of this study is to prepare and evaluate tablets with predesigned internal scaffold structure using 3D printing to achieve sustained drug release. Model drug (ibuprofen) and sustained release material (ethyl cellulose), together with other excipients, were firstly mixed and extruded into filaments by hot melt extrusion. Then these obtained filaments were printed into tablets by fused deposition modeling.

Graphical explanation of thyl cellulose-coated sustained release multiple-unit system and in vivo study results
09. January 2018
A novel once-a-day sustained-release (SR) system of tacrolimus (FK506), a poorly water-soluble immunosuppressive agent, was designed employing ethyl cellulose (EC) polymer as release retardant. Drug (5 mg) was layered onto sugar spheres (518.3 mg) with hypromellose (5 mg), to transform the drug from a crystalline to an amorphous form.

The word coating is built by indivdual tablets in several colous. Photo from  pharmaexcipients.com
26. December 2017
Micro sponge is a novel approach for targeting the drug to the colon for the management of colon ailments such as inflammatory bowel disease. Prednisolone loaded microsponges (PLMs) were prepared and coated with Eudragit S 100 (ES) and evaluated for colon specific drug delivery.

Graphic of Hot Melt Extrusion Process
13. November 2017
Amorphous solid dispersions (SDs) are considered as one of the most effective strategies for the formulation of poorly water-soluble compounds. The active compound is dispersed in an inert carrier composed of a polymer and active excipients. Since the drug is amorphous, there is typically an increase in apparent solubility as well as dissolution rate. Various methods are employed for manufacturing of SDs, nevertheless, hot-melt extrusion (HME) has become one of the most common process techniques

Graphic with the various buccoadhesive dosage forms  for drugs
10. November 2017
Mucoadhesive formulations are well known for the delivery of drugs via the mucosal membrane of oral (sub- lingual, buccal and gingival), rectum, nose, eyes, and vagi- na. Among the various drug delivery approaches, the buc- cal mucosa delivery system o ers several bene ts like easy accessibility, patient compliance, a relatively large surface area of absorption for drug molecules, reduced gastric ir- ritation and simple delivery devices.

12. October 2017
The current study was designed for preparation of gastro-retentive floating tablet of ranitidine HCl by using polymers ethyl cellulose (EC) and hydroxypropyl methylcellulose and xanthan gum (XG) in an attempt to delay its gastric retention time. The tablets were manufactured by direct compression technique. The outcome of varying concentrations of HPMC, XG and EC on drug release was evaluated.