While most students (64.8%) self-medicated basing on their own experiences, only 36% of them fully understood the package insert. Change of dosage or antibiotics and discontinuation after disappearance of symptoms during selftreatment were common. Most self-medicated students (93.7%) regarded SMA as a good/acceptable practice. There was no difference between the non-PKA and PKA groups for most SMA practices, such as main source of antibiotics, main symptoms, review of instructions, change of dosage/ antibiotics, and attitudes towards and confidence in SMA (all P > 0.05).