Use of glycopyrrolate in the treatment of Meniere's disease.
OBJECTIVE
The objective of this study was to determine whether glycopyrrolate is useful as a vestibular suppressant in patients with Meniere's disease. The tested hypotheses were that glycopyrrolate would decrease the perception of dizziness measured by the Dizziness Handicap Inventory in patients with Meniere's disease and that placebo would cause no such decrease.


METHODS
Randomized, prospective.


METHODS
Thirty-seven subjects with a diagnosis of Meniere's disease were administered either 2 mg of glycopyrrolate or placebo twice daily as needed for vertigo. All were also administered the regimen of 1500 mg sodium/day diet and diuretic. The following indices were examined: Dizziness Handicap Inventory, Tinnitus Handicap Inventory, Modified Somatic Perception Questionnaire, Beck Depression Inventory, hearing examination, and electronystagmography. After 4 to 6 weeks of the drug regimen, Dizziness Handicap Inventory, Tinnitus Handicap Inventory, Modified Somatic Perception Questionnaire, and Beck Depression Scale were reexamined. Paired t tests were performed to verify the significance of improvement before and after treatment.


RESULTS
Subjects who received glycopyrrolate had statistically significant reduction in Dizziness Handicap Inventory, Beck Depression Score, and Modified Somatic Perception Score. In the placebo group, no improvement in any index was found.


CONCLUSIONS
The hypothesis that glycopyrrolate is a useful vestibular suppressant in patients with Meniere's disease was statistically verified.
Department of Otolaryngology-Head and Neck Surgery, Columbia University College of Physicians and Surgeons, New York, New York 10032, USA.
I S
IS
Storper
J B
JB
Spitzer
M
M
Scanlan
D000328:Adult; D000368:Aged; D001299:Audiometry; D005260:Female; D006024:Glycopyrrolate / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008575:Meniere Disease / Q000188:drug therapy*; D008875:Middle Aged; D010276:Parasympatholytics / Q000627:therapeutic use*; D011446:Prospective Studies; D016896:Treatment Outcome; D014717:Vertigo / Q000188:drug therapy
D010276:Parasympatholytics; D006024:Glycopyrrolate