Floating Drug Delivery Approaches for Prolonged Gastric Retention

Floating drug delivery systems are promising dosage forms to get prolonged drug release in gastric environment. These are hydro dynamically balanced systems which remains floatable in stomach contents. Most of the drugs are orally less efficient when they are present in intestinal and colonic environment. Floating systems offer the benefits for such type of drugs. The present review briefly explains the advantages and disadvantages of floating systems. This article mainly explains about different approaches for gastric retention and types of floating drug delivery systems. This review exclusively gives the different approaches for floating of dosage forms in gastric contents.