I broke my arm 3 weeks ago. It's a very small crack, my arm is in a sling (no need for a cast) but it has caused me a considerable amount of pain specially the first two weeks. I took Neurofen and Panadol but didn't do much for the pain specially at night. The GP prescribed Panadeine Forte, a combo of 500mgs of paracetamol and codeine, and still the pain wouldn't ease at night.
I had a half empty box of red capsules of Headafen from Aldi, and the first night I took them I slept 6 hours. I still don't understand why Neurafen red capsules, twice the price, don't have the same effect on pain as the cheaper Aldi variety. But there you go, they are more effective as mild anti-inflammatory and on pain.