Pharmaceutical companies spend around 31% of revenues on administration and marketing. 14% is spent and R&D. Profits margin is around 16%.
Most businesses are doing well to have a 3-5% profit margin.
Here is an excerpt of an article I found. Link is below.
http://www.nybooks.com/articles/17244
In the past two years, we have started to see, for the first time, the beginnings of public resistance to rapacious pricing and other dubious practices of the pharmaceutical industry. It is mainly because of this resistance that drug companies are now blanketing us with public relations messages. And the magic words, repeated over and over like an incantation, are research, innovation, and American. Research. Innovation. American. It makes a great story.
But while the rhetoric is stirring, it has very little to do with reality. First, research and development (R&D) is a relatively small part of the budgets of the big drug companies—dwarfed by their vast expenditures on marketing and administration, and smaller even than profits. In fact, year after year, for over two decades, this industry has been far and away the most profitable in the United States. (In 2003, for the first time, the industry lost its first-place position, coming in third, behind "mining, crude oil production," and "commercial banks.") The prices drug companies charge have little relationship to the costs of making the drugs and could be cut dramatically without coming anywhere close to threatening R&D.
Second, the pharmaceutical industry is not especially innovative. As hard as it is to believe, only a handful of truly important drugs have been brought to market in recent years, and they were mostly based on taxpayer-funded research at academic institutions, small biotechnology companies, or the National Institutes of Health (NIH). The great majority of "new" drugs are not new at all but merely variations of older drugs already on the market. These are called "me-too" drugs. The idea is to grab a share of an established, lucrative market by producing something very similar to a top-selling drug. For instance, we now have six statins (Mevacor, Lipitor, Zocor, Pravachol, Lescol, and the newest, Crestor) on the market to lower cholesterol, all variants of the first. As Dr. Sharon Levine, associate executive director of the Kaiser Permanente Medical Group, put it,
If I'm a manufacturer and I can change one molecule and get another twenty years of patent rights, and convince physicians to prescribe and consumers to demand the next form of Prilosec, or weekly Prozac instead of daily Prozac, just as my patent expires, then why would I be spending money on a lot less certain endeavor, which is looking for brand-new drugs?[4]
Third, the industry is hardly a model of American free enterprise. To be sure, it is free to decide which drugs to develop (me-too drugs instead of innovative ones, for instance), and it is free to price them as high as the traffic will bear, but it is utterly dependent on government-granted monopolies—in the form of patents and Food and Drug Administration (FDA)–approved exclusive marketing rights. If it is not particularly innovative in discovering new drugs, it is highly innovative—and aggressive—in dreaming up ways to extend its monopoly rights.
And there is nothing peculiarly American about this industry. It is the very essence of a global enterprise. Roughly half of the largest drug companies are based in Europe. (The exact count shifts because of mergers.) In 2002, the top ten were the American companies Pfizer, Merck, Johnson & Johnson, Bristol-Myers Squibb, and Wyeth (formerly American Home Products); the British companies GlaxoSmithKline and AstraZeneca; the Swiss companies Novartis and Roche; and the French company Aventis (which in 2004 merged with another French company, Sanafi Synthelabo, putting it in third place).[5] All are much alike in their operations. All price their drugs much higher here than in other markets.
Since the United States is the major profit center, it is simply good public relations for drug companies to pass themselves off as American, whether they are or not. It is true, however, that some of the European companies are now locating their R&D operations in the United States. They claim the reason for this is that we don't regulate prices, as does much of the rest of the world. But more likely it is that they want to feed on the unparalleled research output of American universities and the NIH. In other words, it's not private enterprise that draws them here but the very opposite—our publicly sponsored research enterprise.
Over the past two decades the pharmaceutical industry has moved very far from its original high purpose of discovering and producing useful new drugs. Now primarily a marketing machine to sell drugs of dubious benefit, this industry uses its wealth and power to co-opt every institution that might stand in its way, including the US Congress, the FDA, academic medical centers, and the medical profession itself. (Most of its marketing efforts are focused on influencing doctors, since they must write the prescriptions.)
If prescription drugs were like ordinary consumer goods, all this might not matter very much. But drugs are different. People depend on them for their health and even their lives. In the words of Senator Debbie Stabenow (D-Mich.), "It's not like buying a car or tennis shoes or peanut butter." People need to know that there are some checks and balances on this industry, so that its quest for profits doesn't push every other consideration aside. But there aren't such checks and balances.