International Hyperhidrosis Society

A New Hyperhidrosis Clinical Research Study Announced! Open for Participants at 30 Locations Across the U.S.

An Investigational Topical Gel for Excessive Underarm Sweating Being Studied

If you are bothered by excessive underarm sweating, you may be eligible to participate in a year-long research study of a potentially new noninvasive treatment option. You’ll visit your study site approximately 17 times over the 52 weeks.

Participants must be at least 12 years old, in good general health, experience excessive underarm sweating, and be willing to apply an investigational topical gel (5% or 15% sofpironium bromide) to the underarms once per day.

If you’ve had underarm Botox injections in the last six months or underarm surgery, please wait for a future study. Women who are pregnant, planning on becoming pregnant, or breastfeeding should not participate.

Of course, as always, be sure to discuss your personal medical history with the study liaison. Those with certain medical conditions do need to be excluded at this time. Thanks for understanding. Here is a partial list:

Unstable type 1 or type 2 diabetes mellitus or thyroid disease, history of renal impairment, hepatic impairment, malignancy, glaucoma, intestinal obstructive or motility disease, obstructive uropathy, myasthenia gravis, benign prostatic hyperplasia (BPH), neurological conditions, psychiatric conditions, Sjogren’s syndrome, Sicca syndrome, or certain cardiac abnormalities that may alter normal sweat production or may be exacerbated by the use of anticholinergics in the Investigator’s opinion.

Interested in Participating?  Learn More Here.


Pin It


Every Donation Helps! Please consider a year-end gift to IHhS. Together we're making the world better for excessive sweating sufferers.



Sign Up for Our News Blog

Page 1 of 4

  1. Get inside intel, research results, event invites!
  2. First Name*
    Please type your first name.
  3. Last Name
    Please type your last name.
  4. Email*
    Invalid email address.
  5. Year of Birth*
    Invalid Input
  1. Gender*
    Please indicate your gender.
  2. Tell us about you.*

    Please tell us who you are in the hyperhidrosis community.
  1. Country*
    Please select your country where you live.
  2. Postal or Zip Code*
    Invalid Input
  1. Where do you sweat excessively?*

    Please tell us where you sweat so we can help you and others.
  2. Fight SPAM
    Invalid Input

Non-profit shout-outs

 logo exchange silver 128x94

International Hyperhidrosis Society has received the GuideStar Exchange Seal a leading symbol of transparency and accountability provided by GuideStar, the premier source of nonprofit information.




International Hyperhidrosis Society has been awarded as a Top-Rated NonProfit for seven years in a row! Read the reviews and add your own.



Hyperhidrosis Awareness Month is here!

Education and Research Partners