Abstract
Biogenic amine turnover employs the enzymes catechol-O-methyltransferase and monoamine oxidase in neuronal and glial cells. Inhibition of these enzymes elevates biogenic amine levels in the synaptic cleft. Selegiline is a selective, irreversible monoamine oxidase-B inhibitor. Its gastrointestinal absorption is fast, the maximum concentration is reached within 1 h. Main metabolites of selegiline are desmethylselegiline, methamphetamine and L-amphetamine. Symptomatic benefits of selegiline on motor symptoms in patients with Parkinson’s disease are weak. Intervals and severity of off-periods reduce after addition of selegiline, in particular during chronic levodopa intake. Selegiline increases life expectancy in levodopa-treated patients. Selegiline is administered once or twice daily, in 5 mg tablets up to 10 mg, mostly 7.5 mg. Selegiline long-term trials demonstrate, in summary, that combination of selegiline and levodopa may provide a greater clinical benefit and less progression than levodopa alone, even when levodopa without selegiline is taken at substantially higher doses.
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Riederer, P., Müller, T. (2020). Selegiline for Treating Parkinson’s Disease. In: Riederer, P., Laux, G., Mulsant, B., Le, W., Nagatsu, T. (eds) NeuroPsychopharmacotherapy. Springer, Cham. https://doi.org/10.1007/978-3-319-56015-1_237-1
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DOI: https://doi.org/10.1007/978-3-319-56015-1_237-1
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