The entire reason the manufacturer was pushing Oxycontin's 12-hour dosing so hard was because they had a patent on it, and if it required more frequent dosing t

The entire reason the manufacturer was pushing Oxycontin's 12-hour dosing so hard was because they had a patent on it, and if it required more frequent dosing the patent gave no advantage over the cheaper patent-free formulations. That's why it was so important to them that doctors stuck to the official 12-hour dosing interval even if it led to a higher overall dosage and ineffective pain relief.