If you think it's an emergency, call 911.Thinking about suicide or in crisis? Call or text 988.Being hurt or threatened at home? National Domestic Violence Hotline: 1-800-799-7233.Help with alcohol or drug use: SAMHSA Helpline, 1-800-662-4357.
Overview
Naloxone reverses overdoses.
Help is available at 1-800-662-4357.
When to get medical care
Call 911Slow or no breathing, blue lips, or can't wake: give naloxone and call 911.
Get care todaySevere constipation or vomiting.
See a doctor soonWanting help.
Causes
Caused by opioids.
OwieClear has pages on 1 condition that can cause pinpoint pupils, nodding off, or constipation from opioids. Each shows how soon to get care.
Common causes
- Opioid use and dependenceSee a doctor if it doesn't get better
Regular use of pain pills, fentanyl, or heroin can cause pinpoint pupils, nodding off, constipation, itching, and needing more to get the same effect.
What you can do at home
- Keep naloxone.
- Don't use alone.
Medicines
Buprenorphine or methadone for opioid use disorder.
At the doctor
The provider will check.
Questions you may be asked
- Use
The exam
A physical exam.
Tests
- None
Prevention
Reduce harm.
- Carry naloxone
Check your symptoms
Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.
Sources
Last updated 2026-11-13.