SWIM got a bunch of them recently, and only would do 50-100mg per dose (started 50, got up to 100 by the end), once per day. SWIM said they felt a nice light buzz. SWIM has a really low natural opioid tolerance, apparently.
Anyway, if you just got it and never tried it. Just try one and see. It's pills. Don't take a risk by blindly trying five of them when you dont know how you will react.
Throw them away? Jesus. Next I'll read on BL "morphine? just throw it away. It's useless d00d. I need 20 of those pills to get a buzz". If they haven't used opioids before then why not try darvo.