well that is very dangerous my husband was addicted to percocet for two years and was ready to stop and before he did he had to call a doctor and they told him it would take about a month before withdraws would stop. And he got very sick body aches and they told him he could have seizures. You need to wean yourself off or go to a out paitent rehab. Do it the right way.
This individual will almost certainly experience opioid withdrawal. While "unpleasant" this will not be life-threatening.
Early symptoms of withdrawal include:
Agitation
Anxiety
Muscle aches
Increased tearing
Insomnia
Runny nose
Sweating
Yawning
Late symptoms of withdrawal include:
Abdominal cramping
Diarrhea
Dilated pupils
Goose bumps
Nausea
Vomiting
http://www.nlm.nih.gov/medlineplus/ency/article/000949.htm