Bismihi ta'ala
Camel urine, like other halal livestock, is not najis. However, in general it is haram to drink its urine, according to obligatory precaution.
It would be permissible to consume only if it can cure an illness, and limited only to that, enough for the cure. This means that a cure is limited to this exclusively, and the amount consumed is enough for that purpose only.
And Allah knows best.