Can you banish a completed Potion right away for its banish reward, or must you keep it for a later turn?

Question

Accepted Answer

Both are allowed. A completed Potion can be banished at once for its banish reward. Otherwise it goes to your discard pile, and when it cycles back you can play it for its basic effect, which keeps it in your deck, or banish it for the second effect.

Harry Potter: Hogwarts Battle

Can you banish a completed Potion right away for its banish reward, or must you keep it for a later turn?