Where should I go for a prescription for Wigobi/Maunzaro?

Where should I go for a prescription for Wigovina Maunzaro? It feels awkward to just show up for a consultation, and I don't know anyone around me who does it, so I can't really ask.

I am also curious about the criteria or testing procedures required to receive a prescription at a hospital. I would appreciate information from those who have been prescribed Wigobi or Maunza.