In recent years, in association with progress and innovation in the field of pharmaceutical technology, there has been an increasing effort to develop sustained release dosage forms for many drugs due to its advantages in safety and efficacy over immediate release drug products. The intent of this research was to design matrix tablets of Metformin hydrochoride using Ispaghula husk powder and to study its release retardant activity. Natural materials have advantages over synthetic ones since they are chemically inert, nontoxic, inexpensive, biodegradable and widely available. Tablets were...