Angina pectoris

1.0 INTRODUCTION: 1.1 Oral Drug Delivery System: Oral route is the most common route of drug administration. Modern drug delivery strategies try to improve oral drug delivery.1 When a new drug is discovered, a pharmaceutical industry asks one of the first questions is whether the drug can be effectively administered for its intended effect by the oral route or not. If patient self administration cannot be achieved, the sale of drug constitute only small fraction of what the market would be…