Quick summary
Morphine is a natural opioid derived from opium and a Schedule II controlled substance used for moderate-to-severe pain. Dependence can develop with regular use. Methadone, buprenorphine, and naltrexone are FDA-approved treatments for opioid use disorder, and naloxone can reverse a morphine overdose.
Published: 2026-10-26 Updated: 2026-10-26
Morphine is the opioid at the center of the whole family, a medicine that has eased severe pain for well over a century and a drug that can take hold of a person just as surely as any other. It is given in hospitals and prescribed at home, and sometimes dependence begins in the middle of legitimate treatment. That is a medical situation, and it has medical answers.
If someone is unresponsive or breathing slowly after taking morphine, call 911 and give naloxone if you have it. For a mental health or substance use crisis, call or text 988.
Is morphine addiction treatable?
It depends on the pattern of use and what else is involved. For most people with opioid use disorder, medication such as buprenorphine, methadone, or naltrexone plus counseling gives the best odds of staying stopped. If you also drink heavily or take benzodiazepines, do not stop anything abruptly on your own, because that withdrawal can be dangerous and needs medical supervision. If morphine was only ever a short course after surgery or injury, a conversation with a clinician may be enough. In every case, the first step is a single phone call.
What morphine is, according to the DEA and its label
Morphine is a natural opioid derived from opium, and the DEA's fact sheet describes it as a non-synthetic narcotic with a high potential for abuse. Historically it was used almost entirely by injection, but today it comes as oral solutions, immediate-release and extended-release tablets and capsules, and injectable preparations. Those who depend on it often prefer injection, the DEA notes, because the drug reaches the bloodstream faster.
The FDA label for morphine sulfate injection states directly that morphine is a Schedule II controlled substance and carries a boxed warning for addiction, abuse, and misuse, life-threatening respiratory depression, dangerous interactions with benzodiazepines and other central nervous system depressants, and neonatal opioid withdrawal syndrome. The same label says the risk of overdose and overdose death rises with higher doses and persists across the course of therapy.
Why morphine is Schedule II
The DEA's scheduling page defines Schedule II as drugs with a high potential for abuse, with use potentially leading to severe psychological or physical dependence. Morphine is named among its examples, and the DEA's 2024 resource guide lists it with brand and generic names including MS Contin and Roxanol. Schedule II is the strictest tier for a drug with accepted medical use, which is why refills and quantity limits are tighter than for milder prescriptions.
None of that changes what the medicine does in your body: repeated use builds tolerance, and physical dependence can develop even when you take it exactly as prescribed.
Withdrawal and the overdose risk that follows
Morphine withdrawal feels much like withdrawal from other opioids: muscle and bone aches, nausea, sweating, chills, anxiety, diarrhea, and sleeplessness, usually starting within roughly a day and easing over one to two weeks. For a healthy adult it is rarely medically dangerous on its own, but it is punishing, and pushing through it alone is where most relapses happen.
The sharper danger arrives after you stop. Tolerance falls quickly during abstinence, so a dose your body once handled can become a fatal overdose. If you also depend on alcohol or benzodiazepines, do not stop those at the same time without medical help; that withdrawal can be life-threatening.
Treatment for morphine use disorder
Medication is the backbone. SAMHSA explains that since the end of 2022, no special federal waiver is required before a practitioner prescribes buprenorphine for opioid use disorder, and there are no federal patient caps, though state rules can add requirements.
- Buprenorphine — a partial opioid agonist that eases cravings and withdrawal; a daily film or tablet, or a longer-acting injection.
- Methadone — dispensed through certified opioid treatment programs, the longest-established option.
- Naltrexone — blocks opioid effects and is started only after opioids have fully cleared your body.
Medication combined with counseling is the standard for a reason: it treats the craving that drives use, not just the week of withdrawal. Detox by itself, with nothing to follow, leaves you exposed to the tolerance-drop overdose risk above.
Naloxone and overdose
Overdose from morphine can be reversed. The DEA lists the signs as cold and clammy skin, lowered blood pressure, sleepiness, slowed breathing, a slow pulse, coma, and possible death. Keep naloxone within reach if you or anyone in the home uses opioids; it is available over the counter without a prescription. Call 911, give the naloxone, and stay with the person until help arrives; it cannot hurt someone who is not overdosing.
A step you can take tonight
- Search FindTreatment.gov by ZIP code for buprenorphine providers, methadone programs, or counseling near you.
- Call SAMHSA's National Helpline at 1-800-662-HELP (4357) — free, confidential, 24/7.
- Call or text (800) 653-9376 to talk through your options and check your insurance before committing to anything.
Calling is free, and the referral service is paid for by treatment providers. Morphine dependence responds to treatment; the hard part is the first call, and it is the only part you have to do tonight.
Call 911 in a medical emergency. Call or text 988 for a mental health or substance use crisis.
Last updated: Mon Oct 26 2026 00:00:00 GMT+0000 (Coordinated Universal Time)
Frequently asked questions
Where does morphine come from?
Morphine is a natural opioid derived from opium, the DEA says, and it has been used for pain relief for well over a century. It is sold as oral solutions, immediate-release and extended-release tablets and capsules, and injectable preparations.
What schedule is morphine?
Schedule II. The DEA lists morphine among its Schedule II examples and in the schedule of controlled substances, the category for drugs with accepted medical uses but a high potential for abuse that may lead to severe psychological or physical dependence.
Can you become dependent on morphine as prescribed?
Yes. The FDA label for morphine sulfate injection states that addiction can occur in patients appropriately prescribed it, and at recommended dosages. The risk is higher with a personal or family history of substance use or mental illness, which is why prescribers assess risk before and during treatment.
What are the signs of a morphine overdose?
The DEA lists cold and clammy skin, lowered blood pressure, sleepiness, slowed breathing, a slow pulse rate, coma, and possible death. If you see someone barely breathing after opioids, call 911 and give naloxone if you have it.
What medications treat morphine use disorder?
Buprenorphine, methadone, and naltrexone are the three FDA-approved medications for opioid use disorder. Since the end of 2022 no federal waiver is needed to prescribe buprenorphine, and NIDA notes that medication works best alongside counseling.