Xerostomia as a Rare Adverse Effect of Low-Dose Oral Minoxidil: A Case Report With Recurrence After Rechallenge

September 2025 in “ Clinical Case Reports ”

Nicolò Rivetti

oral minoxidil xerostomia topical minoxidil hair loss salivary gland dysfunction Rogaine dry mouth

Studysummary This case report identified a possible adverse effect of low-dose oral minoxidil for female pattern hair loss, as a 74-year-old woman developed significant dry mouth that resolved after stopping the medication and recurred upon rechallenge, suggesting a causal link.

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research Low-Dose Oral Minoxidil Initiation for Patients With Hair Loss

November 2024 in “JAMA Dermatology”

This consensus statement provides expert guidance on prescribing low-dose oral minoxidil for hair loss, noting a lack of representation of pediatric specialists and highlighting areas for future research.

research Minoxidil: Mechanisms of Action on Hair Growth

397 citations , February 2004 in “British Journal of Dermatology”

This article reviews the mechanisms by which minoxidil stimulates hair growth and reports no new clinical findings.