Topical Oxybutynin for Treatment of Hyperidrosis: Local or Systemic Effect?

Inclusion Criteria: * Patients aged ≥18 years and ≤ 45 years * Not treated patient with another drug or treatment methodology for the disease for at least 30 days Exclusion Criteria: * Patients who are hypersensitive to oxybutynin hydrochloride. * Not treated patient with another drug or treatment methodology for the disease for at least 30 days * Patients who have menopausal symptoms * Patients who show signs of skin lesions in the armpit * Pregnancy. Women with the potential to bear children should be under contraceptive strategies and take a negative pregnancy test to be enrolled * Patients with COVID in the contagious phase (PCR+)