Assessment of self administration of dapsone in urine by out-patients attending field clinics.

Self administration of dapsone by 217 out-patients attending the field clinics in the Tindivanam Zone in Tamil Nadu was assessed by measurement of Dapsone/Creatinine ratios in urine. All the patients screened were on DDS 100 mg. daily, most of them for 6 days and the rest for 3 or 4 days in a week. The estimated irregularity of dapsone intake ranged from 15%--25% in the three different areas in this zone. The implications of the findings are discussed.