Psychiatrist or other HCP, Anxiety Treatment central London

[KittytheHare]

Hi there, I'm enquiring on behalf of DS who is 22, and suffering from recurrent and increasingly frequent panic attacks. He's currently on 100mg of sertraline, not really effective at all.
He's been given the name of Dr Dominic de Souza in the Priory, but wondering long term how expensive this would be, and also if anyone knows of someone else who's good.
We're in a different country so trying to support him from a distance. Many thanks.

If you're looking for therapy, seek a private psychologist rather than psychiatrist

No, I'm specifically looking for someone who can prescribe and has specialist knowledge of most effective medication. Thanks anyway.

Dr Nathan Anthony. I found him incredibly helpful.