Types of Communication Flow. Communication, defined as the exchange of information and ideas, manifests itself in business and other organizations with four main types communication flow. These are upward, downward, horizontal, and multi-directional. All are important to the success of an organization. The main method of communication depends upon its structure.
Lipitor (Pfizer), Atorvastatin (INN), is a member of the drug class known as statins, used for lowering blood cholesterol. It also stabilizes plaque and prevents strokes through anti-inflammatory and other mechanisms.
DRUG DESCRIPTION. LIPITOR is a synthetic lipid-lowering agent. Atorvastatin is an inhibitor of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase. This enzyme catalyzes the conversion of HMG-CoA to mevalonate, an early and rate-limiting step in cholesterol biosynthesis.