which one is stronger methadone 6 times a day or oxycontin 20 mg 3 times a day
First of all, methadone is the much stronger drug and second you cannot dose methadone 6x a day because you will end up dying. Methadone is a very tricky opioid due to its half life and high potency. It slowly builds up in your system. Typically, patients on methadone dose once a day and that provides them with enough pain relief for the entire day. You might need something for breakthrough pain, like Vicodin or Percocet but that's it.
Methadone is much more powerful than oxycodone, so do not play around with it unless you are under the care and supervision of a doctor.