We've been looking for 'alternatives to' the usual treatment, but it seems there are few options.
They left me no 'alternative' but to call the police. [=I had to call the police]
We could meet at the library or, 'alternatively', we could all meet at my house.
(..) and the hotel is full. Listen, my friend. This is a matter of national importance. And if you continue to be difficult with me, I shall have no alternative but to have speaks with my superiors. Well, in that case, monsieur, we do have a "reum." I thought as much. (..)1975 The Return of the Pink Panther
(..) think that you're the real thief, then who will catch the impostor? Hmm? Well, I- I can only think of one person really. Can't you? Charles. Since the alternative is prison, I don't have very much choice, do I? I'm frightened. This impostor's obviously very clever. It could be dangerous. (..)1975 The Return of the Pink Panther