Key references: Primary hyperhidrosis

Bajaj V, Langtry JA. Use of oral glycopyrronium bromide in hyperhidrosis. Br J Dermatol 2007;157(1):118-21. https://www.ncbi.nlm.nih.gov/pubmed/17459043
Nawrocki S, Cha J. The etiology, diagnosis, and management of hyperhidrosis: A comprehensive review: Therapeutic options. J Am Acad Dermatol 2019;81(3):669-80. https://www.ncbi.nlm.nih.gov/pubmed/30710603
Schollhammer M, Brenaut E, Menard-Andivot N, Pillette-Delarue M, Zagnoli A, Chassain-Le Lay M, et al. Oxybutynin as a treatment for generalized hyperhidrosis: a randomized, placebo-controlled trial. Br J Dermatol 2015;173(5):1163-8. https://www.ncbi.nlm.nih.gov/pubmed/26114588
Walling HW. Primary hyperhidrosis increases the risk of cutaneous infection: a case-control study of 387 patients. J Am Acad Dermatol 2009;61(2):242-6. https://www.ncbi.nlm.nih.gov/pubmed/19395123