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. Author manuscript; available in PMC: 2016 Jun 4.
Published in final edited form as: J Clin Pharmacol. 2010 Mar 10;51(1):66–74. doi: 10.1177/0091270010363476

Figure 2.

Figure 2

Plasma mean (± SEM) concentrations of (top) L-threo-3,4-dihydroxyphenylserine (L-DOPS) and (bottom) norepinephrine (NE) as functions of time after oral administration of L-DOPS (400 mg) with 200 mg of placebo (PLA, open circles), 200 mg of carbidopa (CAR, black circles), or 200 mg of entacapone (ENT, black squares).