Are the little pink oxycodone that say k56 on them controlled or immediate release?

They are immediate release and highly controlled.

Immediate release

I really don't know I want the answer as well

Yes they are. My bottle from the pharmacy says so.

What are these pills small round peach with k 56 on it

I believe they are immediate release.

Pill imprint K 56 has been identified as Oxycodone hydrochloride 10 mg.

Oxycodone is used in the treatment of pain; chronic pain and belongs to the drug class narcotic analgesics. FDA has not classified the drug for risk during pregnancy.

Oxycodone 10 mg has a high potential for abuse. The drug has a currently accepted medical use in treatment in the United States or a currently accepted medical use with severe restrictions. Abuse of the drug may lead to severe psychological or physical dependence.

Pills image: https://www.drugs.com/imprints/k-56-15462.html

Take care,

maso.-