nicotinate(in) + Na(+)(in) => nicotinate(out) + Na(+)(out)
nicotinate(in) + na(+)(in) => nicotinate(out) + na(+)(out)
nicotinate(in) + Na(+)(in) => nicotinate(out) + Na(+)(out)
nicotinate(in) + na(+)(in) => nicotinate(out) + na(+)(out)