I was taught that a good press ad should stop you in your tracks. Make you forget what you were reading.
I like this a lot. The image is striking. There is lots of copy for those readers that want to know more about the agony of cancer breakthrough pain and a possible solution. But the copy doesn't get in the way.
Only thing missing is a website or phone number? But I don't know the brief so there may be a good reason for this.