Amantadine
Antiparkinsonian / antiviral
Brand names: Symmetrel, Gocovri
Oral health effects
Xerostomia (dry mouth)
Anticholinergic-type dry mouth.
Clinical management: Hydration, salivary substitutes, high-fluoride caries prevention.
Dizziness on standing (orthostatic hypotension)
Orthostatic hypotension is reported in 1–5% of patients; dizziness/lightheadedness in 5–10%.
Clinical management: Raise the chair slowly at the end of the appointment and have the patient sit upright for a minute or two before standing; steady them as they get up. Ask about dizziness on standing, especially after dose changes or in older patients.
Sources
- 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.
- Amantadine prescribing information (FDA label) Heritage Pharmaceuticals Inc. d/b/a Avet Pharmaceuticals Inc. / DailyMed, 2025.