This review of the efficacy of topical sialogogue spray containing malic acid 1% for treating xerostomia included 5 RCTs involving 244 patients. While the findings suggested a benefit the available studies are small, of short duration and none are at low risk of bias.
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36 studies were included in this review of treatment options for xerostomia, hyposalivation and quality of life in patients with Sjögren’s syndrome provinding evidence to support pilocarpine use. However the number of studies were limited and adverse effects were common.
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