I found a pill with 80 on one side and ndh or dhn on the other side it is round and green any idea what it is?

No one really cares if it was found, just dispose of it properly, and you can find the proper way on line. That 'found' pill is no good to anyone at all.

Most people who "find" pills are afraid to do the right thing by calling either their pharmacy or local ER and ask. Afraid they have an illegal drug, or someone else's prescription drug, or a controlled substance that they have NO business taking or possessing.

You are one of them. Who gave you this or how much did you pay someone for this?
Pill Identification Wizard (http://www.drugs.com/imprints.php?action=search&drugname=&imprint=80&shape=24&color=6&I1=Search)

Dispose of this in the proper method. You can even call the police and say you found this and they can come and dispose of it for you and ask you a few questions about where and how you got ahold of this.

It sounds like an oxycontin except one side of the pill says 80 and the other says oc and they are green. If you really need to know call the local pharmacy they will tell you. If the pill wasn't perscibed to you then you should just throw it out, you know what they say curiosity killed the cat!