1993
The effect of L-dopa infusions with and without phenylalanine challenges in parkinsonian patients: plasma and ventricular CSF L-dopa levels and clinical responses.
Woodward WR, Olanow CW, Beckner RM, Hauser RA, Gauger LL, Cedarbaum JM, Nutt JG. The effect of L-dopa infusions with and without phenylalanine challenges in parkinsonian patients: plasma and ventricular CSF L-dopa levels and clinical responses. Neurology 1993, 43: 1704-8. PMID: 8414016, DOI: 10.1212/wnl.43.9.1704.Peer-Reviewed Original ResearchConceptsL-DOPAMotor responseLarge neutral amino acidsVentricular CSF concentrationsAdvanced Parkinson's diseaseL-DOPA infusionL-DOPA levelsClinical responseParkinsonian patientsCSF concentrationsOral administrationNeutral amino acidsParkinson's diseaseInfusionPatientsPhenylalanine challengeReliable predictorCSFVDiseaseBrainDurationResponsePlasmaLevelsAdministration
1987
Clinical Pharmacokinetics of Anti-Parkinsonian Drugs
Cedarbaum J. Clinical Pharmacokinetics of Anti-Parkinsonian Drugs. Clinical Pharmacokinetics 1987, 13: 141-178. PMID: 3311529, DOI: 10.2165/00003088-198713030-00002.Peer-Reviewed Original ResearchConceptsAnti-parkinsonian agentsAnti-parkinsonian drugsClinical PharmacokineticsParkinson's diseaseDirect acting dopamine receptor agonistsLarge neutral amino acidsResponse fluctuationsAnti-parkinsonian actionLittle pharmacokinetic dataPharmacodynamics of levodopaTherapeutic response fluctuationsPlasma levodopa concentrationsDopamine receptor agonistsPotential drug toxicityClass of drugsMechanism of actionParkinsonian populationRenal functionPharmacokinetic considerationsUnchanged drugBrain uptakeReceptor agonistRenal excretionShort eliminationLevodopa concentrations