Complete dosage information for Codeine — threshold, light, common, strong, and heavy dose ranges across 1 route of administration.
Full Codeine profileImportant Safety Notice
Dosage information is for harm reduction purposes only. Individual sensitivity varies greatly. Always start with the lowest effective dose and work your way up slowly. Never eyeball doses — use a milligram scale.
Opioid overdose from Codeine is a critical medical emergency that kills rapidly through respiratory depression. Every second counts. **Signs of opioid overdose** (recognize any of these): - Extremely slow, shallow, or absent breathing - Blue or gray lips, fingernails, or skin - Pinpoint (very small) pupils - Gurgling or snoring sounds - Unresponsive to voice or painful stimulation - Limp body, pale face **EMERGENCY RESPONSE — ACT IMMEDIATELY**: 1. **Call emergency services** (911 in US) 2. **Administer naloxone** (Narcan) if available — intranasal spray or intramuscular injection. Naloxone temporarily reverses opioid overdose. A second dose may be needed after 2-3 minutes if no response. 3. **Begin rescue breathing** if the person is not breathing — tilt head back, lift chin, give one breath every 5 seconds 4. **Place in recovery position** if breathing but unconscious 5. **Stay with them** — naloxone wears off in 30-90 minutes and overdose can recur **Naloxone access**: In many jurisdictions, naloxone is available without prescription at pharmacies. Carrying naloxone saves lives. Learn how to use it.
A common oral dose of Codeine is 100–150 mg.
The threshold dose for Codeine via oral is approximately 30 mg.
Codeine typically lasts 3–6 hours via oral.