Hallucinations, Paranoia and Violent Episodes from Methamphetamine: How Families Can Stay Safe

What Is Methamphetamine-Induced Psychosis?

Ya ba and ice share the same active drug, methamphetamine. The U.S. National Institute on Drug Abuse (NIDA) lists anxiety, sleep problems, mood problems, violent behaviour, paranoia and hallucinations, meaning sights or sounds that seem real but are not, among the long-term effects of methamphetamine use.

These symptoms can appear while someone is high, after several days of use without sleep, and during withdrawal. NIDA notes that methamphetamine withdrawal can include anxiety, fatigue, severe depression, psychosis and intense cravings.

Warning Signs for Families

A study of 152 psychiatric inpatients with methamphetamine-induced psychosis, published in BMC Psychiatry in 2016, found that the most common symptom was the belief that others intended harm (85.5%), followed by violence (75.6%) and hearing voices (51.3%). Some patients believed their partner was unfaithful or had thoughts of suicide.

At home, families often notice the earlier signs first: going days without sleep, fast speech, irritability, closing windows or watching for people spying, talking to or answering voices no one else hears, accusing family members of poisoning them, and carrying a knife or sharp object for self-defence.

If these signs keep appearing, even without violence yet, treat it as the time to plan for safety and to get the person into treatment quickly.

What to Do in a Crisis

Everyone's safety comes first. If there are threats, violence or a weapon, leave the area for somewhere safe and call the police on 191. For illness or injury, call the emergency medical line 1669. Thailand's Department of Mental Health advises calling 1669 and 191 immediately when someone is a danger to themselves, others or the public.

While waiting for help, speak slowly and softly in short sentences. Do not argue that the voices or visions are not real, because to the person they feel very real; acknowledge the feeling instead, for example "You look really scared right now." Keep your distance, do not block the exit, do not try to grab a weapon or restrain the person yourself, and move children and older relatives away first.

Avoid shouting, threatening, mocking or searching the person for drugs yourself, as these increase paranoia and can make the situation more dangerous.

How the Law Can Help Families

Section 22 of Thailand's Mental Health Act B.E. 2551 (2008) states that a person in a dangerous state or in need of treatment must receive treatment, and Section 23 requires anyone who encounters such a person to inform officials, local administrators or the police without delay.

Once the person is brought to a health facility, a doctor assesses them and can admit them on an emergency basis for up to 48 hours for further evaluation. Families do not have to take someone to hospital by themselves in a dangerous situation, and there is no need to feel guilty for contacting officials: it is a way of getting the person into care.

Will the Symptoms Go Away, and What Comes Next?

Many people's psychotic symptoms improve once they stop using and receive treatment, but not everyone recovers quickly. In the same study, 31.6% of patients took more than a month to recover, and paranoia and hearing voices were the symptoms that lasted longest. The longer and more often someone uses, the higher the risk that symptoms return.

NIDA notes that some brain changes may reverse after a year or more without the drug, while others may not recover even after a long time. There are currently no approved medications to treat methamphetamine addiction itself; the mainstay is behavioural therapy such as cognitive behavioural therapy (CBT), which helps people recognise, avoid and cope with situations that trigger drug use.

The right order is to treat severe psychotic symptoms or a dangerous state in hospital first until the person is stable, then move on to continuous addiction rehabilitation to lower the chance of relapse and of psychosis coming back.

After the Crisis: Where Families Can Start

Once things are calm is the best time to talk about treatment. Choose a moment when the person is not high or sleep-deprived, describe what happened factually without blame, and offer a clear next step such as an assessment appointment with a treatment team.

Families have been through something frightening too and deserve rest and support. You can call the mental health hotline 1323 or the drug treatment hotline 1165. If you would like confidential advice about rehabilitation, the Petch Nava Hope Care team can assess and plan together with your family.