What drugs fall under opiates?

Any drug derived from opium is an opiate. Heroine is the most historically famous.

Morphiene being another with Codeine, hydrocodone, oxycodone, roxicodone, roxicette, and many other varying forms and names there is oxycontone, viikodone, and another cool fact if you jst plain smoke opium opiates will show up in your urine a friend of mine had that problem one time