5alpha-pregnane-3,20-dione + NADPH + H(+) => 3beta-hydroxy-5alpha-pregnane-20-one + NADP(+)
5alpha-pregnane-3,20-dione + nadph + h(+) => 3beta-hydroxy-5alpha-pregnane-20-one + nadp(+)
5alpha-pregnane-3,20-dione + NADPH + H(+) => 3beta-hydroxy-5alpha-pregnane-20-one + NADP(+)
5alpha-pregnane-3,20-dione + nadph + h(+) => 3beta-hydroxy-5alpha-pregnane-20-one + nadp(+)