Dual diagnosis

What is dual diagnosis?

Dual diagnosis means that a person has two health conditions at the same time: a problem with alcohol or drugs, and another mental health condition such as depression, anxiety or bipolar disorder. Doctors also call this co-occurring disorders.

The two conditions are closely linked. Each can make the other worse, and each can hide or mimic the other. Someone who drinks to calm anxiety may find the anxiety gets steadily worse. Someone with depression may use cannabis to feel something, and then struggle with motivation and low mood even more. This is why looking at only one problem so often leads to disappointment.

Dual diagnosis is common. India’s National Mental Health Survey 2015–16 found that about one in ten adults had a current mental health condition, and that common mental disorders, severe mental disorders and substance use problems often occur together. A separate national survey led by AIIMS estimated that about 5.7 crore people need help for alcohol problems, about 77 lakh for opioids such as heroin (smack) or painkillers, and about 72 lakh for cannabis (bhang, ganja, charas). Many of them also live with an untreated mental health condition.

Having a dual diagnosis is not a sign of weakness or bad character. It is a health condition, and people recover.

Conditions that often occur with addiction

Almost any mental health condition can occur with substance use. The most common combinations include:

• Depression. Low mood, loss of interest and hopelessness, often together with heavy drinking or sleeping pill use.
• Anxiety disorders. Constant worry, panic attacks or social anxiety, with alcohol, cannabis or sedatives used to calm down.
• Bipolar disorder. Periods of very high energy and very low mood; substance use often rises during both.
• ADHD. Lifelong restlessness, impulsivity and poor attention, which raise the risk of early and heavy substance use.
• Psychosis and schizophrenia. Hearing voices or holding unusual beliefs; cannabis and stimulants can trigger or worsen these symptoms.
• Trauma and post-traumatic stress. Nightmares, flashbacks and feeling constantly on edge after frightening experiences, with substances used to block memories.
• Personality difficulties. Long-standing problems with emotions, anger, relationships or impulsive behaviour.
• Sleep problems. Insomnia often leads to drinking or sleeping pills at night, which in turn disturb sleep further.

Many people have more than two conditions, and tobacco use is common alongside all of these.

Signs to look out for

Dual diagnosis can be hard to spot because the symptoms overlap. It may be worth seeking an assessment if you notice several of these:

• Using alcohol or drugs to cope with sadness, worry, anger, memories or sleeplessness
• Mood or anxiety problems that continue even during periods without substances
• Repeated relapse despite sincere efforts to stop
• Mental health symptoms that started, or became much worse, after substance use increased
• Sudden changes in behaviour, such as withdrawing from family, suspiciousness or unusual beliefs
• Mood swings, with periods of very little sleep, overspending or risky behaviour
• Thoughts that life is not worth living, especially when intoxicated or in withdrawal
• Previous treatment for addiction or for mental health that helped only partly

Which came first?

This is one of the first questions families ask, and the honest answer is that it varies. There are three common patterns.

The mental health condition came first. Many people start drinking or using drugs to manage symptoms they don’t yet have a name for, such as anxiety, low mood, restlessness from ADHD, or painful memories. This is sometimes called self-medication. It can bring short-term relief, but over time the substance usually worsens the original problem and adds dependence as a second one.

The substance use came first. Heavy or long-term use can itself cause mental health symptoms. Alcohol is a depressant and commonly causes low mood and poor sleep. Withdrawal from alcohol or sleeping pills causes anxiety. Cannabis and stimulants can cause suspiciousness, hearing voices or panic. In some people, substance use seems to bring out a condition they were already vulnerable to.

Both share common roots. Genes, stress, trauma, difficult childhood experiences and a difficult environment raise the risk of both conditions at once.

Substance-induced symptoms or a separate condition?

Doctors make an important distinction between the two:

• Substance-induced symptoms develop during heavy use, intoxication or withdrawal, and usually improve once the person has stopped for a period of time.
• An independent condition began before the substance use, continued during long periods without it, or persists for a substantial time after stopping. It needs its own treatment.

Getting this right matters. If depression is mainly caused by alcohol, the priority is stopping drinking, and mood is monitored as it improves. If depression is a separate illness, it needs treatment in its own right, or relapse into drinking becomes much more likely. Often the picture becomes clear only after a few weeks of abstinence and careful follow-up, which is why a doctor trained in both areas is helpful.

Why treating both together matters

In the past, people with dual diagnosis were often sent back and forth. The de-addiction centre would say, “Come back when your depression is treated.” The mental health clinic would say, “Stop drinking first, then we will help.” Each treated one half of the problem, often without talking to the other, and many people fell through the gap.

This separate approach tends to fail because:

• Untreated anxiety, depression or voices push the person back towards substances
• Ongoing substance use stops psychiatric medicines and therapy from working properly
• Medicines prescribed in one place may interact with substances or with medicines from another place
• The person and family receive mixed messages and lose trust in treatment

Integrated treatment means one team assesses and treats both conditions at the same time, with one shared plan. It is more convenient, avoids conflicting advice and keeps the person engaged. International guidelines recommend coordinated care that meets the person’s wider needs too, including physical health, work and housing.

Dr. Tarwani is trained in both general psychiatry (MD, IHBAS Delhi) and addiction psychiatry (DM, AIIMS New Delhi), so both conditions can be assessed and treated within one plan.

When to see a psychiatrist

Consider speaking to a psychiatrist if:

• You use alcohol or drugs to cope with how you feel
• You have been treated for addiction or for a mental health condition, but only one side seems to have been addressed
• You keep relapsing despite wanting to stop
• Mood, anxiety, sleep or unusual experiences continue after you stop using
• Family members are worried about both substance use and changes in behaviour
• You are taking medicines from different doctors and are not sure they are safe together

You don’t need to be sure which problem came first. Working that out is part of the assessment.

How dual diagnosis is diagnosed

The first consultation is a detailed, non-judgemental conversation. The psychiatrist will ask about your substance use, withdrawal symptoms, mood, anxiety, sleep, attention, unusual experiences, past trauma, physical health, family history and previous treatment. A timeline showing when each problem began, and how they changed during periods without substances, is especially useful. With your permission, a family member can add their observations.

Questionnaires may be used to measure the severity of each condition. Blood tests, such as liver function tests, and sometimes urine drug tests help complete the picture. Some diagnoses are confirmed only after a period of abstinence and follow-up. Diagnoses follow international criteria (ICD-11).

Treatment

Treatment is tailored to the person and to the combination of conditions. It usually includes the following.

1. Safety and stabilisation

The first priority is safety. This may mean a medically supervised withdrawal from alcohol, opioids or sleeping pills, and urgent attention to severe depression, suicidal thoughts, mania or psychosis. Depending on severity, this can happen at home with close follow-up, or during a short hospital stay.

2. Medicines for both conditions

Your psychiatrist may prescribe medicines for the mental health condition, such as antidepressants, mood stabilisers, antipsychotics, or stimulant and non-stimulant medicines for ADHD, together with medicines that reduce cravings or prevent relapse. Choices take into account how substances and medicines interact, the risk of misuse, and your physical health. Habit-forming medicines are avoided or used only briefly and under supervision. Medicines should only be started, changed or stopped with your doctor.

3. Counselling and talking therapies

Therapy in dual diagnosis addresses both conditions at once. Commonly used approaches include:

• Motivational enhancement: building your own reasons and confidence to change
• Cognitive behavioural therapy (CBT): changing thought patterns linked to low mood, anxiety and substance use
• Relapse prevention: recognising triggers such as stress, loneliness or low mood, and planning how to cope
• Skills training: managing emotions, sleep, anger and cravings without substances
• Trauma-focused support: when past experiences drive symptoms, once the person is stable enough

4. Family involvement and daily life

Families are included, with consent, to understand both conditions, improve communication and support recovery. Attention is also given to physical health, work or studies, finances and routine, because stability in daily life protects against relapse of both conditions.

Outpatient, online or inpatient care?

• Outpatient care suits most people, with regular consultations while living at home.
• Online consultations are convenient for follow-up, medicine reviews, family guidance and people living outside Delhi NCR.
• Inpatient or residential rehabilitation may be advised for severe withdrawal, serious mental health symptoms, risk of self-harm, repeated relapse, or when home is not a safe place to recover.

Dr. Tarwani sees patients at Sukoon Health in Gurugram and South Delhi, where inpatient rehabilitation is also available, and online.

Recovery and relapse

Recovery from dual diagnosis often takes time, because two conditions are healing together. Improvements in mood or anxiety make it easier to stay away from substances, and staying away from substances makes mental health treatment work better. Progress builds on itself.

Relapse of either condition can happen. A return to drinking may be an early sign that depression is coming back; a return of anxiety may be an early warning of a slip. Regular follow-up helps catch these signs early. A setback is a signal to adjust the plan, not a reason to give up. Many people with dual diagnosis go on to work, study and enjoy close relationships.

For families

Supporting someone with both addiction and a mental health condition can be confusing and exhausting. It is easy to feel angry about the substance use while also feeling worried about the person’s mind. A few things help:

• Understand that both conditions are real health problems, not choices or excuses
• Talk calmly when your loved one is sober, focusing on specific worries rather than blame
• Avoid labels such as “nashedi” or “pagal”, which increase shame and make help harder to accept
• Take any talk of self-harm seriously and seek help promptly
• Keep medicines safely stored, and never give medicines secretly
• Look after your own health and seek support for yourself

You are welcome to consult Dr. Tarwani first, on your own, to plan how to encourage your loved one towards treatment.

Common myths

• “He only drinks because he is depressed. Fix the depression and the drinking will stop.” Once dependence has developed, it needs treatment in its own right.
• “Stop the drugs first, then we will see about the mind.” Waiting often means neither problem improves. Both need attention together.
• “Psychiatric medicines are just another addiction.” Most medicines for depression, anxiety, bipolar disorder and psychosis are not habit-forming, and all are prescribed under supervision.
• “If you have a mental illness, you can never stop using.” People with dual diagnosis recover every day, particularly with integrated treatment.
• “It’s just a phase, he will grow out of it.” Both conditions usually become harder to treat the longer they continue. Early help is simpler.