Related Experiment Video
Updated: Aug 4, 2026

Ole Isacson: Development of New Therapies for Parkinson's Disease
Published on: April 29, 2007
Iron, a new aid in the treatment of Parkinson patients
Abstract:
One of the problems in treating Parkinson patients is the so called "off-effect" which occurs after long term treatment with L-DOPA. Off-effects are characterized by severe rigor and akinesia. Increasing dosages of L-DOPA and decarboxylase- or monoaminooxidase-inhibitors do not improve these symptoms. Intravenously applied iron--in form of a ferri-ferro-complex--exhibited a considerable benefit for all patients treated so far. They regained a remarkable mobility. Their disability score dropped from up to 90% down to 30%. The effect of iron is dosage-dependent and lasts 24 to 48 hours.
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