Welcome Opiate_p1, to the Bluelight forums. We will assist as best as we can, however I ask the tone be friendly. Your original post could have been friendlier.
I am going to recommend that you do not use any other substance, if you choose to proceed with the 30 mg dosage. That is a high dose for a opiate naive person.
Be in a safe place. This is something you need to feel at home or with people that can keep an I on you. It really doesn't matter what other drug experience, if any you have. This is a different drug.
Seriously have a friend around or a phone near by to use for any reason.
Everyone reacts different to opiates. If your buddy said it was cool man, try it, that doesn't mean anything. Everyone has different body chemistry .
If you have consumed any other drugs in the last day or so, now is the time to post it. We are all here to help you.
I suggest you chill to a movie or with some friends. Having people near by is good with something that could hurt you.
Are you a guy, girl? Weight, when did you eat. It all figures in. I would believe things to be fine. However, this is not a toy.
Oxycodone is a opioid drug by itself. It goes by various trade names depending what it is combined with and the dosage.
Dosage wise, it is up to you. I will warn that this should not be a daily thing. Only as needed. Tell us a little more for better dosage advice.
Being naive to this medication, you will feel as low as 10 mg. You can cut it and have 15 mg. I cannot recommend higher unless you have people watching you.
30 mg is a lot for a new person.