Sustained-release agents

This cement has retained its popularity to this day, despite its poor mechanical properties, because it is easy to use - it makes no demands on technique - is tolerant towards living tissues and is a palliative or anodyne. It is unlikely to be replaced, because, fortuitously, it is formed from two medicaments and, again fortuitously, is a sustained release agent for eugenol. 

Sustained-release agents (waxy agents) Castorwax, Carbowax T ... 

Formulation of dry powders for inhalation must rely on a very short list of excipients to fulfill the customary roles of diluent, stabilizer, solubilizer, processing aid, and property modifier (e.g., flow sustain release agent). 

Bioadhesive emollient emulsifying agent emulsion stabilizer gelling agent mucoadhesive nonionic surfactant sustained-release agent. 

Antifoaming agent dissolution enhancer emollient emulsifying agent skin penetrant sustained-release agent. 

Peerapattana, J. Phuvarit, R Srijesdaruk, V. Preechagoon, D. Tattawasart, A. Pregelatinized glutinous rice starch as a sustained release agent for tablet preparations. Carbohydr. Polym. 2010, 80 (2), 453-459. 

O Brien, S. Wang, Y.J. Vervaet, C. Remon, J.R Starch phosphates prepared by reactive extrusion as a sustained release agent. Carbohydr. Polym. 2009, 76 (4), 557-566. 

Visavarungroj, N., Herman, J. and Reraon.J. P. (1990) Crosslinked starch as sustained release agent. Drug... 

Gum tragacanth has the ability to extensively modify the rheology of aqueous media even at low concentrations. Thus, it has foxuid uses as suspending agent, stabilizer, emulsifier [4] and sustained release agent [56,61,62]. It has also been studied for topical applications [63]. 

Use of locust bean as sustained release agent [54], carrier [54,65,66], disintegrant [54,67] and bioadhesive agent [66] has been the subject of research studies. Locust bean gum is promising for use in controlled drug release systems targeting the colon [54]. 

Lambda ( -type) carrageenans have found use as thickeners [78]. The carrageenans have been found suitable to be utilized as gelling, thickening, suspending [24] and sustained release agents [4]. 

Today, xanthan enjoys worldwide approval and has become one of the most widely investigated polysaccharides [24]. Xanthan gum enjoys wide application in industrial fields, including food, oil recovery, cosmetics and pharmaceuticals [4]. Its utilization for food uses has been approved by the US Food and Drug Administration (FDA) in 1969 [24]. It is utilized as stabilizer in emulsions and suspensions [4] like toothpaste and ointments, sustained release agent [86,87] and compression enhancer [1]. 

Chitin has been investigated in terms of its use as a sustained release agent in different forms, including microspheres [101], nanogels [20] and nanofibers [21,102]. 

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