rifampicin(in) + H(+)(out) <=> rifampicin(out) + H(+)(in)
rifampicin(in) + h(+)(out) <=> rifampicin(out) + h(+)(in)
rifampicin(in) + H(+)(out) <=> rifampicin(out) + H(+)(in)
rifampicin(in) + h(+)(out) <=> rifampicin(out) + h(+)(in)