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Opium Guide · Symptoms

Opium addiction symptoms and signs of use

Reviewed by: Dr. Mahmoud El-Sawy Last updated: September 28, 2026 9-minute read
The short answer

The most notable signs of opium use are pinpoint pupils, repeated drowsiness and nodding off while sitting, constipation, itching and slow speech. With addiction, behavior changes appear, such as withdrawal from others, secrecy, a constant need for money and neglect of work, along with continued use despite harm and failed attempts to stop. One sign is not enough to judge; diagnosis needs a medical assessment.

  • Some signs resemble other illnesses or medications, so do not rush to judgment.
  • A calm conversation without accusations works better than an angry confrontation.

What are the physical signs of opium use?

These signs usually appear within hours of use, and repeat in a noticeable pattern with regular use:

  • Clearly small pupils, even in dim light.
  • Drowsiness and heavy eyelids, and sudden nodding off while sitting or talking, then waking up.
  • Slow speech and movement, and poor concentration.
  • Repeated itching of the skin, especially on the face and nose.
  • Chronic constipation, loss of appetite and gradual weight loss.
  • Sometimes a flushed face and sweating, and dry mouth.
Infographic of the signs of opium use: drowsiness and heaviness, slow speech, repeated itching, chronic constipation, and changes in the pupils
Physical signs of opium use

What behavioral signs might the family notice?

Changed routine

Sleeping at unusual times, being away for periods without explanation, and being late for work.

Confidentiality

Closing doors, avoiding questions, and hiding things in unusual places.

A change in company

Drifting away from old friends and spending more time with new people or at late-night gatherings.

Money

Constantly asking for money, money and belongings going missing from the home, or unexplained debts.

Neglecting responsibilities

Declining interest in work, family and personal appearance.

Medications

Looking for extra painkillers or sedatives, or pressing hard to get them.

What are the psychological signs of opium addiction?

  • Mood swings between exaggerated calm after use and irritability and tension when it is delayed.
  • Losing interest in hobbies and activities they used to enjoy.
  • Anxiety, depression and withdrawal from social life.
  • Denial and justification, such as saying it is a “medicine for tiredness” or a “harmless habit.”
  • A mind preoccupied with getting the substance and arranging the money for it.

When a person is late for their usual time of use, signs such as yawning, a runny nose and irritability may appear. These are the start of withdrawal, and the details are on the opium withdrawal symptoms page.

How does the family tell the problem has gone beyond experimenting?

  • Physical signs recurring in a regular pattern, not a one-off.
  • Repeated promises to stop, then going back.
  • The amount or number of times increasing over time.
  • Continued use despite clear health, family or financial problems.
  • Severe distress and tension when the substance cannot be obtained.

How is opium addiction diagnosed medically?

Doctors rely on the criteria of the DSM-5 diagnostic manual for opioid use disorder, or the international classification ICD-11. The criteria revolve around loss of control, continued use despite harm, tolerance and withdrawal symptoms. The number of criteria met within one year indicates the severity of the disorder:

Summary of the DSM-5 criteria for opioid use disorder
AreaExamples of criteria
Impaired controlUsing larger amounts or for longer than intended, failing to cut down, spending a lot of time getting it, and cravings.
Social impactNeglecting work or home, continuing despite problems with others, and giving up important activities.
Risky useUsing in dangerous situations, and continuing despite knowing it harms the body or mind.
Pharmacological criteriaTolerance, and withdrawal symptoms when stopping.
2 – 3 criteriaMild disorder
4 – 5 criteriaModerate disorder
6 or more criteriaSevere disorder

This is an awareness summary, not a tool for self-diagnosis. A diagnosis is made by a specialist doctor after a full assessment.

Do the signs of opium use differ in older adults?

In older adults, signs of use may be wrongly put down to “getting older”: a lot of drowsiness, forgetfulness, slowed movement, constipation, repeated falls and weight loss. The person may have been using opium steadily for years, so no one notices the change until another illness, a hospital admission, or when the substance is cut off. That is why it is important that the treating doctor knows about any use, because it affects the choice of medications, anesthesia and the treatment plan.

What are common mistakes when opium use is discovered?

  • Downplaying it: treating it as an “old habit” or a “mood” that needs no treatment.
  • Violent confrontation: shouting, threats and throwing the person out, which push them to hide it more.
  • Sudden stopping at home: locking the person up or forcing them to stop without medical supervision.
  • Giving medications from the family: sedatives or painkillers without a doctor, which can cause a dangerous mix.
  • Hiding it from the doctor: when entering a hospital or having surgery, which puts the patient at risk.

How do you tell opium use from other substances?

Comparing visible signs
The signOpium and opioidsHashishStimulants
PupilsVery smallUsually normal with red eyesDilated
ActivityDrowsiness and nodding offRelaxation and slownessOveractivity and insomnia
AppetiteWeakOften increasedVery weak
SpeechPoorSometimes slowFast and flowing

The signs of opium may resemble those of other opioids such as tramadol and heroin, or of sedatives. The substance cannot be identified precisely from signs alone; testing and a medical assessment are the right way.

How do you talk to someone you suspect is using opium?

  1. Choose a calm time when the person is fully alert, not during use or right after a direct problem.
  2. Start with concern and love, not accusation: “I noticed you are very tired and I am worried about you.”
  3. Describe what you have noticed with specific facts, without labels or insults.
  4. Listen without interrupting, and expect denial the first time.
  5. Offer practical help: an appointment for a confidential medical assessment.
  6. If they are older and have used it for years, focus on their health, chronic illnesses and the importance of medical follow-up.

What next after noticing the signs?

The next step is to ask for a specialist assessment, without interrogation or hunting for conclusive proof. Through an interview, examination and tests, the doctor can determine whether there is use, dependence or addiction, which substances are involved, and whether there are accompanying illnesses or mental health conditions. The family can start with a consultation on their own if the person is not ready yet, and then move step by step to opium addiction treatment.

Signs of opium overdose: call an ambulance (123) immediately

  • Pupils that are extremely small, like pinpoints
  • Very slow, irregular or stopped breathing
  • Loss of consciousness, with no response to calling or touch
  • Blue lips and fingernails
  • Gurgling or unusual snoring sounds

Call an ambulance on 123, place the person on their side so they do not choke, and stay with them until help arrives. The medicine naloxone reverses the effect of an opioid overdose if given in time, and it is available in emergency departments.

Call the ambulance 123
Frequently asked questions

Frequently asked questions about opium addiction symptoms and signs of use

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What is the clearest sign of opium use?

Pinpoint pupils with drowsiness and repeated nodding off are among the clearest signs, but they are not conclusive on their own, and can result from prescribed opioid medications.

Can you tell someone uses opium from their eyes?

Small pupils are an important sign, but they occur with all opioids and some medications, so they must be tied to other behavioral signs and a medical assessment.

What is the difference between opium use and addiction?

Use is taking the substance. Addiction is loss of control and continued use despite harm, with tolerance and withdrawal symptoms, and it is diagnosed against specific criteria.

Do people who use opium lose weight?

Gradual weight loss is common because of poor appetite, constipation and neglecting food, especially with long-term use.

Are older adults who have used opium for years addicted?

If they show tolerance, symptoms on stopping and difficulty controlling use, that is dependence which needs a medical assessment and a safe plan that takes their age and illnesses into account.

When do the signs of opium call for an ambulance?

If the person is unconscious or not responding, their breathing is very slow or irregular, or their lips are blue, call an ambulance (123) immediately and place them on their side.

What should I do if I find opium on my son?

Stay calm, talk to him openly and without threats, then ask for a confidential specialist assessment to find out the size of the problem and a plan for handling it.

Medical reviewDr. Mahmoud El-Sawy, Consultant Psychiatrist and Addiction Specialist

This page was written by the Eradah editorial team and reviewed by a specialist physician under the medical review policy. Last medically reviewed: September 28, 2026. The content is for education and does not replace consulting a doctor.

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