Ophthalmologists around the world, on their own initiative, are injecting tiny quantities of a colon cancer drug called Avastin into the eyes of patients with wet macular degeneration, a common condition of older age that can lead to severely impaired eyesight and blindness. They report remarkable success at very low cost because one phial can be split and used for dozens of patients.
But Genentech, the company that invented Avastin, does not want it used in this way. Instead it is applying to license a fragment of Avastin, called Lucentis, which is packaged in the tiny quantities suitable for eyes at a higher cost. Speculation in the US suggests it could cost £1,000 per dose instead of less than £10. The company says Lucentis is specifically designed for eyes, with modifications over Avastin, and has been through 10 years of testing to prove it is safe.
Off label uses for drugs happens all the time, but the cost differential here just seems too much.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.