Clinical decision-support only. For use by licensed dental professionals. Not a substitute for professional judgment or a complete drug reference. Always verify with primary sources.
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Medication

Labetalol

Beta/alpha-blocker

Brand names: Trandate

Oral health effects

  • Xerostomia

    Dry mouth reported; used in hypertensive urgency and pregnancy.

    Clinical management: Hydration and caries prevention.

  • Orthostatic hypotension / scalp tingling

    Positional blood-pressure drop and paresthesia reported.

    Clinical management: Raise the dental chair slowly; allow the patient to sit before standing.

  • Taste disturbance (dysgeusia)

    Taste distortion was reported in about 1% of labetalol-treated patients vs 0% on placebo in controlled trials.

    Clinical management: Ask about altered taste; reassure that it is usually mild and reversible, and suggest the patient mention persistent change to their prescriber.

Sources

  1. A Guide to Medications Inducing Salivary Gland Dysfunction, Xerostomia, and Subjective Sialorrhea: A Systematic Review Sponsored by the World Workshop on Oral Medicine VI. Wolff A, Joshi RK, Ekström J, et al. Drugs in R&D, 2017.
  2. Adverse drug events in the oral cavity. Yuan A, Woo SB. Oral surgery, oral medicine, oral pathology and oral radiology, 2015.
  3. Labetalol prescribing information (FDA label) Bryant Ranch Prepack / DailyMed, 2026.