Authors S. Selvadurai, S.Divya, A.Geetha, K.Rohini and S.Anbazhagan
use of natural excipients to deliver the bioactive agents, natural excipients are their being non-toxic, less expensive and freely available, performance of the excipients partly determines the quality of the medicines, substantial evolution from an inert and cheap vehicle to an essential constituent of the formulation, Excipients are any component other than the active substance(s) intentionally added to formulation of a dosage form, herbal excipients which , conventional dosage forms, novel drug delivery systems, controlled delivery, Excipients are primarily used as diluents, binders, disintegrants, adhesives, glidants and sweeteners in conventional dosage forms like tablets and capsules, researchers in herbal excipients, natural ingredients in food, drugs, and cosmetics as they believe that anything natural will be more safe and devoid of side effects, natural excipients can potentially influence the rate and/or extent of absorption of a drug, herbal excipients are non-toxic and compatible, have a major role to play in pharmaceutical formulation, herbal excipients used in NDDS, Natural polysaccharides are extensively used for the development of solid dosage forms, polymers of monosaccharides (sugars) as aloe vera polysaccharides, highly stable, safe, non-toxic, and hydrophilic and gel forming in nature, linear polysaccharides remain intact in the physiological environment of the stomach and the small intestine, but are degraded by the bacterial inhabitants of the human colon which make them potentially useful in targeted delivery systems to the colon, Polymeric hydrogels are widely used as controlled-release matrix tablets, coat of considerable thickness was required to protect the drug core in simulated in vivo condition, matrix tablets, aloe vera powder spray drying technique, matrix patch for transdermal, design oral controlled drug delivery systems for highly water-soluble drugs using aloe vera as a carrier, colon-delivery systems, carrier in the form of a compression coating over the drug core, design oral controlled drug delivery systems for highly water-soluble drugs, carrier in the form of three-layer matrix tablets, formulations meant for daily administration, wet granulation technique, topical pharmaceutical formulations as a suspending and emulsifying agent, preparation of pastilles and lozenges and as a tablet binder, pellets, monolithic osmotic tablet system (MOTS), release-controlling agents in producing directly compressed matrices, mucoadhesive tablets, buccal delivery, Compaction and compression properties, pellets were prepared by extrusion-spheronisation
