Use of a compound having the formula (I) in the preparation of a medicament composition comprising from about 1.0% to about 25% of said compound and a pharmaceutically acceptable vehicle, for topical administration to skin of an area of a mammalian subject suffering from hyperhidrosis, before bedtime, such that compared to untreated, baseline conditions, sweat production is reduced by at least about 25% for at least about six (6) hours.
