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There is quite a lot about fava beans and mucuna in the PIEN archives. There 
seems to be more ldopa in germinating f. beans but you have to eat a lot and 
favism can be a problem for some. As for mucuna, it works but has the same 
side effects as synthetic ldopa in the long run. No need for carbidopa for it 
seems better assimilated. here is a re-post:  

  Mucuna pruriens in Parkinson's disease: a double blind clinical and 
pharmacological study 
R Katzenschlager1,2, A Evans1, A Manson3, P N Patsalos4, N Ratnaraj4, H Watt5, 
L Timmermann6, R Van der Giessen7 and A J Lees1 
1 National Hospital for Neurology and Neurosurgery, London, UK
 2 Department of Neurology, Donauspital/SMZ-Ost, Vienna, Austria
 3 Wessex Neurological Centre, University of Southampton, Southampton, UK
 4 Department of Clinical and Experimental Epilepsy, Institute of Neurology, 
London, UK
 5 Medical Statistics Unit, London School of Hygiene and Tropical Medicine and 
Institute of Neurology, Queen Square, London, UK
 6 Department of Neurology, University of Düsseldorf, Düsseldorf, Germany
 7 Phytrix Ltd, Munich, Germany 
Correspondence to: 
Professor A J Lees 
Reta Lila Weston Institute of Neurological Studies, Windeyer Building, 46 
Cleveland Street, London, W1T 4JF, UK; [log in to unmask]
Background: The seed powder of the leguminous plant, Mucuna pruriens has long 
been used in traditional Ayurvedic Indian medicine for diseases including 
parkinsonism. We have assessed the clinical effects and levodopa (L-dopa) 
pharmacokinetics following two different doses of mucuna preparation and 
compared them with standard L-dopa/carbidopa (LD/CD). 
Methods: Eight Parkinson's disease patients with a short duration L-dopa 
response and on period dyskinesias completed a randomised, controlled, double 
blind crossover trial. Patients were challenged with single doses of 200/50 
mg LD/CD, and 15 and 30 g of mucuna preparation in randomised order at weekly 
intervals. L-Dopa pharmacokinetics were determined, and Unified Parkinson's 
Disease Rating Scale and tapping speed were obtained at baseline and 
repeatedly during the 4 h following drug ingestion. Dyskinesias were assessed 
using modified AIMS and Goetz scales. 
Results: Compared with standard LD/CD, the 30 g mucuna preparation led to a 
considerably faster onset of effect (34.6 v 68.5 min; p = 0.021), reflected 
in shorter latencies to peak L-dopa plasma concentrations. Mean on time was 
21.9% (37 min) longer with 30 g mucuna than with LD/CD (p = 0.021); peak 
L-dopa plasma concentrations were 110% higher and the area under the plasma 
concentration v time curve (area under curve) was 165.3% larger (p = 0.012). 
No significant differences in dyskinesias or tolerability occurred. 
Conclusions: The rapid onset of action and longer on time without concomitant 
increase in dyskinesias on mucuna seed powder formulation suggest that this 
natural source of L-dopa might possess advantages over conventional L-dopa 
preparations in the long term management of PD. Assessment of long term 
efficacy and tolerability in a randomised, controlled study is warranted.


Maryse

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