Best Formulation Components   % (w/w) (w/w) /10 g Soybean oil 37.12 3.64 Span 80 29.54 2.9 Brij 35P 0.15 0.02 1-butanol 29.69 2.91 Water 3.50 0.33 Pilocarpine hydrchloride - 0.2

Table 1: Percentage weight and batch composition of microemulsion formulation in the presence or absence of PHCl.