Generic drugs/products prescription

Third, a more rapid rafe of sales erosion in brand name producfs was observed in fhe case of more recenf pafenf expirations. This is especially so for fhe fop selling drug products which attract the most intensive generic competition. Three recent cases illustrate this phenomenon. Generic enalapril, laxmched in August 2000 as a substitute for the brand name drug Vasotec , obtained 66.4% of new prescriptions just 4 weeks after its launch. 

Masson, A., and R. Steiner. 1985. Generic Substitution and Prescription Drug Prices Economic Effects of State Drug Product Selection Laws. Staff Report of the Bureau of Economics, FTC, Washington, DC, October. 

Generic drngs represent a low-cost alternative to more expensive brand-name products. The difference in cost between the average generic prescription and average brand name prescription now exceeds 90.00. Prescribers shonld take appropriate steps to ensure the prudent nse of generic drugs. 

Regulatory classification, such as prescription drug, generic drug, over-the-counter (OTC) products, biotechnology products, dietary supplements... 

The preformulation study tasks for the generic products are simpler than those for the original prescription products. By the time the generic product is marketed, the innovative drug product may have been sold for a long time. Most of the preformulation data and information have been published and can be found in publications such as the Analytical Profile for Drug Substances and Excipients and in the United States Pharmacopeia (USP) and foreign pharmacopoeia. 

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