Encyclopedia of Otolaryngology, Head and Neck Surgery

2013 Edition
| Editors: Stilianos E. Kountakis

Pharmacotherapy of Imbalance

Reference work entry
DOI: https://doi.org/10.1007/978-3-642-23499-6_712

Synonyms

Basic Characteristics

The pharmacotherapy used in the treatment of vestibular dysfunction or vestibular imbalance is based on the physiology of neurotransmitters within the vestibular system. The vestibuloocular reflex is driven by at least four major neurotransmitters: glutamate, acetylcholine (ACh), gamma-aminobutyric acid (GABA), glutamate, and glycine. ACh has role of central and peripheral agonist affecting both muscarinic and nicotinic receptors in the vestibular efferent and central pathway systems (Barton et al. 1994). GABA is one of the inhibitory neurotransmitters and acts by stimulation of one of the two of GABA receptor: GABA-A and GABA-B (Cohen et al. 1987). Both receptors share the similarity of neurotransmitter effect on the vestibular system when stimulated (Neerven et al. 1989). However, GABA-B when stimulated by specific agonists shows a decrease in duration of vestibular system response (Cohen et al. 1987). Glutamate acts as an...

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of OtolaryngologyMedical College of GeorgiaAugustaUSA
  2. 2.MelbourneUSA