Alza is one of the world’s leading producers of drug delivery systems, ALZA Corporation develops and manufactures a variety of systems that make administration of medication more efficient and effective. The systems ALZA develops are used by other pharmaceutical companies as well as by ALZA itself for its own drug portfolio. A pioneer in the field of transdermal therapy, ALZA developed the Nicoderm patch marketed by Marion Merrell Dow as an aid to help smokers kick the habit. Other well-known products developed by ALZA include Procardia XL for both angina and hypertension, Duragesic for the management of cancer pain, and Glucotrol XL for the treatment of Type II diabetes. The company’s sales and marketing efforts focus on urology, oncology, and the central nervous system/pediatrics areas.