Invigoration Draught

Exact effect unknown, but presumably invigorates the user

Ingredients

unknown

References from the canon

The fifth years had to brew an Invigoration Draught, which Harry found rather easy to do because Snape was pretending that Harry was invisible in retaliation for Harry viewing the scene in the Pensieve. Harry did just fine, but Snape intentionally dropped and broke the flask, so Harry received a zero for the class (OP29).