Nov. 5, 2008 -- Two banned obesity drugs may have lingering effects on the heart, according to a new study. The study shows that heart valve problems linked to the banned obesity drugs fenfluramine and/or dexfenfluramine typically last years after stopping those drugs. The FDA ordered fenfluramine and dexfenfluramine off the market in September 1997 after those drugs were linked to heart valve problems. Fenfluramine was one of the ingredients in fen-phen , and dexfenfluramine is closely related to fenfluramine.
Biological engineers or bio-engineers are engineers who use the principles of biology and the tools of engineering to create usable, tangible, economically viable products.
Who are Environmental Engineers and What They do. Environmental engineers are specialists who study and perform environmental engineering. To this end, they take doctrines of engineering, science, biology and chemistry to formulate solutions to public health issues and environmental problems. Essentially, they study the effects technology has on the environment.