A shortage of Covid drugs in Kolkata is sending patient families on a harrowing run around. Since last week, the drug Actemra or Tocilizumab disappeared from the market. 53-year-old Rinku Banerjee flew in from Delhi via Jaipur to Kolkata to hunt for the medicine, personally, for her father who is in a south Kolkata nursing home. His doctor wanted to urgently administer Actemra.