Xerostomia Management Guidelines

First‑Line Non‑Pharmacologic Stimulation (Mild Glandular Dysfunction)

Non‑pharmacological stimulation (e.g., sugar‑free acidic candies, xylitol lozenges) is the preferred initial approach when any residual salivary function remains. [@1]
Mechanical stimulation with sugar‑free chewing gum can be used to augment salivary flow. [@1]
These gustatory and mechanical interventions improve dryness symptoms, but current studies do not demonstrate a clear superiority of one method over another. [@1]

Pilocarpine is administered at 5 mg orally four times daily for patients with moderate salivary hypofunction. [@3]
Cevimeline may be better tolerated, showing fewer systemic adverse effects compared with pilocarpine. [@1]
Excessive sweating occurs in more than 40 % of patients receiving pilocarpine, resulting in a withdrawal rate of about 2 %. [@3]
Both pilocarpine and cevimeline can cause nausea, gastrointestinal upset, dizziness, and bronchoconstriction; clinicians should monitor for these effects, especially in older adults. [@2]

When salivary output is absent, saliva substitutes become the primary therapy. [@1]
Preferred formulations have a neutral pH and contain fluoride and electrolytes to approximate natural saliva. [@1]
Products are available as oral sprays, gels, or rinses. [@1]
Substitutes that include xylitol provide temporary relief and add protection against dental caries. [@2]
Topical agents containing olive oil, betaine, and xylitol effectively reduce thirst and xerostomia sensations. [@2]

Muscarinic agonists should be offered to patients with moderate dysfunction or to those with mild dysfunction that does not respond to non‑pharmacologic measures. [@1]
Evidence supporting muscarinic agonists in primary Sjögren’s syndrome is limited, and safety concerns warrant cautious use. [@1]

Encourage increased water intake and limit caffeine consumption to maintain oral moisture. [@2]
Recommend prescription‑strength fluoride toothpaste for enhanced dental protection. [@2]
Advise frequent application of water‑based lip lubricants (avoid petroleum‑based products). [@2]
Suggest vigorous rinsing with a bland solution several times daily to sustain oral hydration. [@2]

Baseline whole‑saliva flow measurement should be obtained before initiating treatment, as subjective dryness may not correlate with objective output. [@2]
Exclude oral candidiasis and burning‑mouth syndrome before attributing symptoms solely to xerostomia. [@1]
Patients with severe, persistent, or quality‑of‑life‑impacting dryness should be referred back to their healthcare provider for further evaluation. [@2]
Dental referral is advised when chronic dry mouth leads to signs of dental complications. [@2]