The Idea Behind Oral Controlled Release Technology Is That Plasma Level Of The Drug Can Be Optimized By Controlling The Delivery Of The Drug From The Formulation In To Gastro-Intestinal Tract Control Can Be Achieved By Simple Control Release Dosage Form Which Release The Drug At Specific Rate Over Prolong Period Of Time. Controlled-Release (Cr) Formulations Were Brought Into Medication Therapy With Two Main Goals In Mind: To Minimise The Number Of Single Doses Per Day, Improving Patient Compliance, And To Limit Plasma Level Fluctuations, Resulting In Improved Therapeutic Efficacy And Reduced Toxicity. There Are A Variety Of Controlled-Release Pharmaceutical Systems Available Today, Ranging From Monolithic Matrices, Membrane Reservoirs, And Erodible Polymers To More Technologically Advanced Ph Independent Formulations, Ion Exchange Resins, And Osmotic ally And Geometrically Modified Systems. Pharmacotherapy Is The Use Of Chemical Or Biological Medications To Treat And Prevent Illness And Disease. Along With Surgery, Physical Therapy, Radiation, And Psychotherapy, It Is One Of The Most Significant Medical Treatments.