Hello everyone, I have a question that I've been trying to find an answer to but can't seem to find the answer. I've been wondering how long a single phased dose of long acting oxycontin lasts? For example, If the pill is 15 mg, assuming it releases half of it (7.5mg) in 1 hour (or however many hours it takes), does that mean that single 7.5mg phased dose will last for 12 hours? Or does it only last for 4 hours like short acting oxycodone? I've always assumed that each phased dose it releases only lasts for 4 hours, but I wanted to make sure. Please let me know, thank you.