minocycline(in) + H(+)(out) = minocycline(out) + H(+)(in)
minocycline(in) + h(+)(out) = minocycline(out) + h(+)(in)
minocycline(in) + H(+)(out) = minocycline(out) + H(+)(in)
minocycline(in) + h(+)(out) = minocycline(out) + h(+)(in)