Clinical studies face
additional hurdles because the plant is listed on Schedule I, the U.S. Drug Enforcement Administration's (DEA's) list of the most dangerous drugs.
Not exact matches
Packaging public financing as a constitutional amendment could make those proposals more palatable to resistant legislators, in part
because an amendement would face several
additional hurdles to becoming law and could not take effect for at least five years.
Zinc finger enthusiasts believe it's worth attempting to overcome the
additional hurdles of developing DNA - targeting drugs,
because of the chance that the end result may be safer and more effective.