At lower doses, causes memory loss, fatigue, headache, anxiety, and itching.

At lower doses, OXYCODONE causes memory loss, fatigue, headache, anxiety and itching. Oxycodone is sometimes prescribed to treat severe pain. It has a lot of side effects attached to it. At higher doses, the drug slowed down the breathing or even stop it completely, it lowers the heart rate and the blood pressure; these effects may lead to coma and death. 

Ithink it would be a and b

The administration should take action.