Prescription opioid information
Oxycodone Dependence & Addiction
Oxycodone is a prescription opioid used for pain. Physical dependence can develop with ongoing use, and some people develop opioid use disorder. These are related but not identical conditions and should be assessed clinically.
Overview
What is Oxycodone?
Oxycodone is a prescription opioid used for pain. Physical dependence can develop with ongoing use, and some people develop opioid use disorder. These are related but not identical conditions and should be assessed clinically.
How it can affect the body
Oxycodone can reduce pain and also cause drowsiness, nausea, constipation and slowed breathing. Taking it differently from how it was prescribed or combining it with sedating substances can increase risk.
Dependence vs. addiction
Physical dependence may occur even when an opioid is taken as prescribed. Opioid use disorder involves a pattern of impaired control, craving or continued use despite harm and requires a clinical assessment.
Signs of problematic use
- Using more or more often than intended
- Difficulty cutting down
- Withdrawal or cravings
- Continued use despite problems caused or worsened by opioid use
Important health risks
- Respiratory depression and overdose
- Higher risk when combined with alcohol or benzodiazepines
- Tolerance and physical dependence
- Exposure to counterfeit tablets if medication is obtained outside a regulated pharmacy
When emergency care is needed
Call 911 for suspected opioid overdose. Naloxone can temporarily reverse opioid overdose and should be given if available while emergency help is on the way.
How addiction is medically assessed
A physician can review the original prescription context, current dose pattern, withdrawal symptoms, other medications and whether opioid-use-disorder treatment is appropriate.
Treatment options
If opioid use disorder is diagnosed, opioid agonist treatment such as Methadone, Suboxone or SROM may be considered when clinically appropriate. The plan depends on individual circumstances.
Treatment pathway
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Editorial transparency
Medical sources & review status
Prepared by the TSCP editorial team using Canadian public-health and clinical sources. A named medical reviewer is not displayed until TSCP confirms the reviewer and credentials.
Content updated: 2026-09-10