ABSTRACT
A majority of the oral extended-release dosage forms are different types of tablets and capsules. Far less frequently liquid preparations, most often as suspensions, can also be found. Pharmaceutical companies produce a wide variety of such dosage forms giving them their own trade names. For better orientation in terminology, based on literature, contain a survey of trade names for extended-release dosage forms manufactured as tablets, capsules, and liquid preparations. The latter has not been confirmed, but it has been suggested that the irritating action is caused by potassium ions, present in GITS as the osmotic driving agent. Work on further development of technology so as to reduce adverse reaction has been continued. Diazepam absorption is more desirable in the stomach, not in the intestine where it is poorly absorbed. For this reason the swimming-capsule, which remains on the surface of the gastric content for many hours and releases a drug was elaborated.
