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Basic Research and Invention
Characteristics of Drug Research
The Importance of Industrial Sources of New Drugs
14 other sections not shown
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addition advertising ampicillin analysis animal tests antibiotics Antihistamines applied research approval average basic research batch brand name brand-name products Butazolidin chapter Chlorpromazine clinical tests Comanor companies compounds concentration ratio consumers cost decline digoxin disease diuretics doctors drug discovery drug industry drug research drugs introduced economic economies of scale Edwin Mansfield entry equation Erythromycin estimate expected rate gram-negative important increase industrial laboratories investment large firms large number leading firms Lederle meprobamate million monopoly power multiple-source drugs NCE's number of prescriptions oligopoly penicillin percent percentage Pfizer pharmaceutical industry pharmaceutical research pharmacists Phenobarbital plant Polycillin Prednisone prescribing price competition price cuts problem profit rate promotional expenditures public policy quality control rate of return reduce regulatory period reported reserpine result risk samples single entities small firms suggests Tetracycline therapeutic classes therapeutic fields therapy tion total sales U.S. Pharmaceutical Market