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Mov Disord. 2006 May;21(5):704-7.

Botulinum toxin type A for drooling in Parkinson's disease: a double-blind, randomized, placebo-controlled study.

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Clinica di Neuroriabilitazione, Dipartimento di Neuroscienze, Università Politecnica delle Marche, Az. Ospedaliero Universitaria Ospedali Riuniti, Ancona, Italy.


To investigate the safety and efficacy of botulinum toxin type A (BoNTX) treatment to reduce sialorrhea in Parkinson's disease (PD), a double-blind, randomized, placebo-controlled study enrolled 32 PD patients complaining of excessive drooling. Patients received either 50 U Botox in each parotid gland or placebo without using ultrasound guidance. Subjects treated with BoNTX experienced a reduction in both drooling frequency and familial and social disability (TimexGroup effect: P<0.01), as well as in saliva production (Time x Group effect: P<0.0001). No adverse events were recorded. BoNTX injections are safe and effective treatment for the management of PD-related drooling.

[Indexed for MEDLINE]

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